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830-01 Sample Questions Answers

Questions 4

A Steelhead Mobile client can be configured to operate in visible or invisible mode (show client in system tray parameter). What part of the configuration is this setting included?

Options:

A.

Acceleration policy

B.

Authentication policy

C.

Endpoint policy

D.

Port labels

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Questions 5

Which of the following are configurable attributes of an Interceptor appliance? (Select 3)

Options:

A.

Synchronizing datastore

B.

Sharing connection state with a parallel Interceptor appliance

C.

Redirect to a Steelhead appliance cluster

D.

Failover to another Interceptor appliance

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Questions 6

How many in-path rules will a LAN-initiated (i.e. SYN packet arrives at a LAN port of an In-path interface) single connection match on an Interceptor appliance?

Options:

A.

0

B.

1

C.

2

D.

3

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Questions 7

What should you do when you receive the following message?

Options:

A.

Nothing. This is a warning message which means that the Steelhead appliance is resetting an internal state regarding this connection and it should not affect user performance.

B.

Switch off the Steelhead appliance

C.

Create a specific pass-through rule to bypass the above source and destination hosts

D.

Reload the Steelhead appliance

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Questions 8

After a new physical in-path installation, all applications appear to be slower. Adding a pass-through rule does not seem to fix the problem. Which of the following is the most likely cause of the problem?

Options:

A.

Duplex mismatch

B.

Firewall blocking auto-discovery probes

C.

No fixed-target rules installed

D.

A and C

E.

A, B, and C

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Questions 9

While looking at the Current Connections page on a client-side Steelhead, you noticed that there is more CIFS traffic on the WAN than on the LAN for some connections. What may be the problem?

1) The source data is compressed or encrypted

2) File server not located on the same subnet as the server-side Steelhead

3) The Steelhead is counting both CIFS optimized and unoptimized traffic

4) CIFS read-ahead

5) CIFS write-behind

Options:

A.

1, 4

B.

4, 5

C.

1, 2, 3

D.

1, 2, 5

E.

3, 5

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Questions 10

In an existing deployment, all connections appear to be unoptimized. The Current Connections page lists the connections as pass-through.

The logs indicate admission control “Jan 19 18:44:56 client sport[343]: [admission_control.WARN] Pausing intercept.” What are some possible ways to alleviate the problem? (Select 2)

Options:

A.

Verify that there is no SMB Signing on the server

B.

Ensure that there are no Opportunistic Lock issues

C.

Disable or reduce the connection timeout of MAPI prepopulation

D.

Investigate if there is a virus on a client trying to propagate itself

E.

Validate that NFS v2 broadcasts are enabled

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Questions 11

Which of the following commands would allow you to generate a system dump from the CLI?

Options:

A.

sysdump

B.

dump generate

C.

debug generate dump

D.

sysdump generate dump

E.

dump generate –w filename

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Questions 12

Refer to the exhibit.

A customer is reporting that the first connection from a user to the server is failing. However, subsequent connections work properly and are optimized. How can this problem best be resolved?

Options:

A.

Fixed-target rule

B.

Enable RIP/OSPF on the routers

C.

Enable Simplified Routing

D.

Enable QoS

E.

Enable RIP/OSPF on the Steelhead appliances

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Questions 13

The port used by the Steelhead appliance for datastore synchronizations is:

Options:

A.

7801

B.

7810

C.

7744

D.

7850

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Questions 14

On the Interceptor appliance, what are the possible filter settings on a load balancing rule? (Select 4)

Options:

A.

Source Port

B.

Source IP Subnet

C.

Destination IP Subnet

D.

Destination Port

E.

VLAN ID

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Questions 15

What happens to traffic when a Steelhead appliance reports admission control?

Options:

A.

Traffic will be interrupted

B.

The Steelhead stops the interception of new connections for optimization for as long as it is in admission control

C.

This is just a report and the Steelhead will continue to optimize traffic

D.

The Steelhead will start optimizing faster any new connections

E.

The Steelhead will shut down in less than a minute

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Questions 16

Which statements are true regarding the default methods by which load-balancing takes place in the Interceptor appliance. (Select 2)

Options:

A.

The Interceptor appliance uses round robin, for each TCP connection, regardless of source or destination IP address, and is equally load-balanced between a group of Steelhead appliances

B.

The Interceptor appliance uses round robin, for each TCP connection, depending on source IP address, and is equally load-balanced between a group of Steelhead appliances

C.

The Interceptor appliance uses hash assignment, for each TCP connection depending the hash value calculated from source and destination IP address, and is directed to a particular Steelhead appliance in the local cluster

D.

The Interceptor appliance can dynamically determine and direct traffic for optimization to the least-loaded Steelhead appliances based on Steelhead appliance resource usage

E.

The Interceptor appliance uses peer affinity, a Steelhead appliance in the local cluster that has been previously paired with a destination IP address is preferred

F.

The Interceptor appliance uses peer affinity, a Steelhead appliance in the local cluster that has been previously paired with a remote Steelhead appliance is preferred

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Questions 17

Which authentication methods are available to the Steelhead Mobile Controller?

Options:

A.

Local and LDAP

B.

Local, NIS, and LDAP

C.

Local, RADIUS, and TACACS+

D.

Local, RADIUS, and Active Directory

E.

NTLM and Kerberos

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Questions 18

Using an Interceptor appliance is an alternative to what network designs? (Select 2)

Options:

A.

WCCP

B.

PBR

C.

Connection Forwarding

D.

Fixed-target rules

E.

Peering rules

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Questions 19

Branch office users live streaming video URL fragment requests are not optimized even though Microsoft Silverlight stream splitting is enabled. What could be the causing this? (Select 3)

Options:

A.

The client-side Steelhead appliance optimization service wasn't restarted.

B.

HTTP optimization is disabled on the client-side Steelhead appliance.

C.

The server-side Steelhead appliance optimization service wasn't restarted.

D.

HTTP optimization is disabled on the server-side Steelhead appliance.

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Questions 20

While performing a health check for a Steelhead appliance at a remote site, you noticed some of the pass-through traffic should have been optimized. The pass-through reason for the suspicious traffic is "SYN on WAN side". Upon further investigating, you also noticed that all of the traffic initiated at the data center is pass-through while all of the traffic initiated at the remote site is optimized. There is only one path between the data center and the remote site and both Steelhead appliance are physically in-path. What are the possible causes? (Select 2)

Options:

A.

There is a pass-through in-path rule configured on the data center Steelhead appliance.

B.

There is a pass-through in-path rule configured on the remote site Steelhead appliance.

C.

There is a pass-through peering rule configured on the data center Steelhead appliance.

D.

The LAN and WAN interfaces on the data center Steelhead appliance are reversed.

E.

The LAN and WAN interfaces on the remote site Steelhead appliance are reversed.

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Questions 21

Which command will display current alarm status information?

Options:

A.

show stats alarm

B.

stats show alarm

C.

show alarm all

D.

alarm show all

E.

show all

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Questions 22

In a previously optimized environment, users have recently upgraded their Windows XP workstations to Windows 7. After the upgrade, users are complaining about slow CIFS and encrypted MAPI performance. What is the most likely cause?

Options:

A.

The Steelhead appliance is only configured for transparent mode for SMB signing and MAPI encryption.

B.

Windows 7 is not supported.

C.

The client-side Steelhead appliance is not joined to the domain.

D.

The server-side Steelhead appliance is not joined to the domain.

E.

The Steelhead appliance only supports NTLM.

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Questions 23

What is contained in the probe of the return SYN/ACK packet when using enhanced auto-discovery (EAD)?

Options:

A.

4 bytes of notification

B.

10 bytes of TCP inner channel setup + 2 bytes of notification

C.

14 bytes of TCP inner channel setup + 4 bytes of notification

D.

18 bytes of TCP inner channel setup + 4 bytes of notification

E.

32 bytes of TCP inner channel setup + 2 bytes of notification

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Questions 24

What is the default Connection Forwarding keep alive interval?

Options:

A.

1 second

B.

3 seconds

C.

5 seconds

D.

10 seconds

E.

15 seconds

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Questions 25

A customer noticed that after deploying the Steelhead between their switch and router, OSPF takes much longer to re-converge after the router fails. Which RiOS feature can you enable to reduce the convergence time?

Options:

A.

Adjusting the OSPF “keep-alive” timers on the Steelhead appliance

B.

Configure Fail-To-Block on the Steelhead appliance

C.

Enable Link State Propagation

D.

Enable Link State Notification

E.

Configure Rapid Spanning Tree on the Steelhead appliance

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Questions 26

Which of the following is true regarding the CMC appliance?

Options:

A.

Can be configured using its default IP address of 192.168.1.1

B.

Can be initially set up via the CLI

C.

Can be initially setup via the AUX interface

D.

Can be initially set up via telnet

E.

Both C and D

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Questions 27

You choose to deploy a Steelhead appliance logically in-path using policy-based routing (PBR) as the traffic redirection method. Additionally, you want to mark the Type of Service (ToS) value for active FTP as AF21 using route-maps. Which route-map specified Type of Service (ToS) value is correct? (Hint: Use the calculator)

Options:

A.

EF21

B.

0x48

C.

0x58

D.

0xb8

E.

18

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Questions 28

Which of the following points on WCCP v2 are correct? (Select 4)

Options:

A.

Intercept on outbound interface only

B.

Multicast support

C.

Able to redirect any TCP/UDP traffic

D.

Uses UDP port 2048 for control messages

E.

Multi-router support

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Questions 29

Simplified routing learns to associate MAC addresses to IP addresses by: (Select 2)

Options:

A.

Tracking destination IP addresses and matching them to the correct MAC address

B.

Tracking source IP addresses and matching them to the correct MAC address

C.

Tracking ARP requests sent by surrounding routers

D.

Tracking ARP requests sent by surrounding switches

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Questions 30

In an implementation using a 4-port card, which interface could be used as the Connection Forwarding neighbor? (Select 2)

Options:

A.

Primary

B.

AUX

C.

inpath0_0

D.

inpath0_1

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Questions 31

The fair peering feature on Interceptor appliances can be enabled:

Options:

A.

For each load-balancing rule, including the default rule.

B.

For each load-balancing rule, excluding the default rule.

C.

Only for the default rule.

D.

For each load-balancing rule and in-path rule

E.

For each load-balancing rule, in-path rule, including the default rule.

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Questions 32

The Primary interface is REQUIRED for which deployment methods and features?

1) In-path

2) Server-side out-of-path

3) Logical in-path (WCCP/PBR)

4) Hybrid Mode

5) Proxy File Services (PFS)

Options:

A.

2

B.

1, 2

C.

2, 3

D.

2, 4

E.

2, 4, 5

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Questions 33

Adaptive data streamlining provides you:

Options:

A.

with the ability to fine tune the data streamlining capabilities, and enables you to obtain the right balance between optimal bandwidth reduction and optimal throughput

B.

with the ability to fine tune the data streamlining capabilities, and enables you to obtain the right balance between optimal bandwidth reduction and optimal acceleration

C.

with the ability to fine tune the compression capabilities, and enables you to obtain the right balance between optimal bandwidth reduction and optimal throughput

D.

with the ability to fine tune the compression capabilities, and enables you to obtain the right balance between optimal bandwidth reduction and optimal acceleration

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Questions 34

During an upgrade, what steps are necessary to convert VM slots for use in Steelhead EX v2.0? (Select 3)

Options:

A.

Transfer the slot to a remote server (or download from a browser).

B.

Convert the slot or package for use on a Steelhead EX v2.0 appliance and adjust its properties, if necessary.

C.

Configure the slots to not start before upgrading to Steelhead EX v2.0.

D.

Create compressed versions of your existing VSP slots.

E.

Any VM slots that do not use data flow will be automatically converted during the upgrade to Steelhead EX v2.0.

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Questions 35

What steps take place during an upgrade process?

Options:

A.

The new software image will be loaded into the Backup partition; a reboot will be necessary to have the Steelhead appliance switch to the newer software

B.

The new software image will be loaded into the Booted partition; a reboot will be necessary to have the Steelhead appliance switch to the newer software

C.

The new software image will be loaded into the Backup partition; a restart will be necessary to have the Steelhead appliance switch to the newer software

D.

The new software image will be loaded into the Booted partition; a restart will be necessary to have the Steelhead appliance switch to the newer software

E.

The new software image will be loaded into the Backup partition; a configuration save will be necessary to have the Steelhead appliance switch to the newer software

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Questions 36

The port used by the Steelhead appliance for connection forwarding is:

Options:

A.

7810

B.

7850

C.

7801

D.

7820

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Questions 37

What CLI command is used to view logs?

Options:

A.

show log

B.

show debug logging enable

C.

show debug logs enable

D.

view debug generate dump

E.

view logs

F.

tail –f /var/logs

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Questions 38

You have a SteelCentral Controller for SteelHead Mobile with a policy that includes auto-discovery rules, enabled Location Awareness and set a minimum latency of 10ms. Your client is now in the branch office, has received this policy and the nearest SteelHead is 2 ms away. What will happen to connections?

Options:

A.

The branch steelhead will pass through the traffic because of the RVBD in-path rule.

B.

The SteelHead Mobile client will bypass the branch SteelHead using Enhanced Auto Discovery.

C.

The SteelHead Mobile client will not optimize, letting the branch SteelHead do the optimization.

D.

The branch SteelHead will shut-down the SteelHead mobile client services as they are not needed in branch.

E.

The SteelHead Mobile client will optimize as normal, sharing information with the branch SteelHead.

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Questions 39

When configuring encrypted Lotus Notes optimization and the standard port is configured to require encryption, which of the following is true?

Options:

A.

An alternate unencrypted port must be open on the server, and a copy of the server ID file must be imported to the server side SteelHead.

B.

An alternate unencrypted port must be open on the server, and a proxy server ID file must be created on the server-side SteelHead.

C.

An encrypted port must be open on the server, and a proxy server ID file must be created on the server-side SteelHead.

D.

An encrypted port must be open on the server, and a copy of the server ID file must be imported to the server-side SteelHead.

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Questions 40

The SteelHead Out of Band splice (OOB) uses which addressing mode? Assume a default configuration.

Options:

A.

Always correct addressing.

B.

Depends on which addressing mode the first optimized connection uses.

C.

Always transparent addressing.

D.

Always destination transparency.

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Questions 41

You have a client and server using SMB2 signing. You have SMB optimization enabled on your SteelHeads, but SMB signing is not enabled on the server-side SteelHead. What is the effect on this on an SMB connection which the SteelHeads attempt to optimize?

Options:

A.

Any SMB2 connections between this client and server will be shown as optimized with protocol errors. No latency optimization or data reduction can be performed.

B.

SMB2 connections between this client and server, which are initiated at the client side will be fully optimized with latency reduction.

C.

Any SMB2 connections between this client and server will be optimized using data reduction only. No latency optimization will take place.

D.

Any SMB2 connections between this client and server will be optimized using latency optimization only No data reduction will take place.

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Questions 42

In the SteelHead Mobile client application, the Connection List shows a connection with a green arrow. What does this indicate?

Options:

A.

A branch warning optimized connection

B.

A branch mode optimized connection

C.

An unlicensed connection

D.

A pass-through connection

E.

A normal optimized connection

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Questions 43

-- Exhibit –

-- Exhibit --

Refer to the exhibit. A Steelhead administrator has recently decided to implement QoS on SH12. The WAN link between Branch1 and the Data Center is a T1. After implement QoS, he started seeing problems with traffic to Server1. What could be the problem and how would you fix it? (Select 2)

Options:

A.

Problem: Max BW % on the default class. Fix: increase Min BW %

B.

Problem: Max BW % on the default class. Fix: increase Max BW %

C.

Problem: Max BW % on the default class. Fix: disable QOS

D.

Problem: Min BW % on the default class. Fix: increase Min BW %

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Questions 44

What type of problem does the error message below indicate:

Sep 13 03:50:51 SH alarmd[18371]: [alarmd.NOTICE]: Alarm 'admission_mem' triggering

Sep 13 03:50:51 SH alarmd[18371]: [alarmd.NOTICE]: Alarm 'admission_control' triggering

Sep 13 03:50:51 SH alarmd[18371]: [alarmd.NOTICE]: Alarm 'health' severity changed to 'Admission Control'

Options:

A.

High CPU Utilization

B.

Paging alarm

C.

Admission control on connections

D.

Admission control on memory

E.

Admission control on system

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Questions 45

Which hypervisor platforms are officially supported by Virtual SteelHead? (Choose three.)

Options:

A.

Virtual Box

B.

Hyper-V

C.

KVM

D.

VMware Fusion

E.

ESXi

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Questions 46

You are troubleshooting a TCP connection that is not being optimized. On the Current Connections report, you expand the connection and see the pass-through reason is ‘Pre-existing connection’. Without restarting the oprimization service, how could you get this connection to optimize?

Options:

A.

Reset the connection in the Current Connections report.

B.

Create a full-transparency in-path rule for the source and destination hosts.

C.

Create a fixed-target in-path rule for the source and destination hosts.

D.

Enable auto-kick-off on the default in-path rule.

E.

Enable Simplified Routing in ‘all’ mode.

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Questions 47

Up to how many TCP connections can the Interceptor 9600 handle?

Options:

A.

1,000,000

B.

1,500,000

C.

2,000,000

D.

2,500,000

E.

3,000,000

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Questions 48

-- Exhibit –

-- Exhibit --

Refer to the exhibit. When USER1 tried to access Server 1, the user sees the shown message on his Steelhead Mobile Client. What does this represent?

Options:

A.

The Steelhead Mobile client does not have enough licenses.

B.

The Steelhead Mobile client policy is configured with the "location awareness" feature.

C.

There are pass-through rules not allowing optimization.

D.

The Steelhead Mobile client did not initialize properly and needs to be reset.

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Questions 49

You wish to optimize SSL connections to an internal server. Where should the server certificate and private key be installed?

Options:

A.

Client-side and server-side SteelHead Certificate Authority list

B.

Server-side SteelHead SSL server certificate list

C.

Client-side SteelHead and server-side SteelHead SSl server certificate list

D.

Client-side SteelHead SSL Server certificate list

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Questions 50

After completing the SRDF configuration on both Steelhead appliances and restarting the optimization service, the SRDF connections in the Current Connections report show a red protocol error icon in the Notes column. What could be a cause of this issue?

Options:

A.

A SRDF protocol error can occur when attempting to optimize traffic originating from the LAN-side of the Steelhead appliance. Please check the LAN-side Symmetrix array for compatibility.

B.

The red icon indicates that RiOS is optimizing the connection normally.

C.

A SRDF protocol error can occur when attempting to optimize traffic originating from the WAN-side of the Steelhead appliance. Please check the WAN-side Symmetrix array for compatibility.

D.

Symmetrix needs to be enabled on the EMC server.

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Questions 51

What methods can the CMC appliance use to provide notification of CMC system events? (Select 3)

Options:

A.

Email

B.

RADIUS

C.

SNMP traps

D.

Syslog

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Questions 52

What types of operations can be observed under the Manage > Operation History page in the CMC Management Console? (Select 2)

Options:

A.

push

B.

link

C.

abort

D.

fetch

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Questions 53

Refer to the exhibit.

A connection times out when Client41 and Client42 attempt to either establish an HTTP session to Server31 or an FTP connection to Server32 after not connecting to them for some time. The very next attempt to connect to these services done immediately after the failure seems to work correctly. The clients are able to ping both servers and no access-lists are configured on the routers. SH3 uses the IP address of R3f0 as its default gateway. Upon powering off SH3 and SH4, the problem goes away even for first connection and everything works normally (even after not connecting for extended periods of time). Which of the following are likely to correct this problem?

Options:

A.

Both servers have faulty network interface cards and should be replaced

B.

Both the HTTP service running in Server31 and the FTP service running in Server32 are down and should be restarted

C.

A more specific static route pointing to Subnet 31 is not configured at SH3

D.

A more specific static route pointing to Subnet 31 is not configured at R3

E.

A more specific static route pointing to Subnet 31 is not configured at L3 Switch

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Questions 54

If a file is not optimized for more than one user at a time, this indicates:

Options:

A.

Steelhead appliance has entered admission control

B.

Steelhead appliance is configured with the incorrect speed or duplex on the Primary interface

C.

Steelhead appliance is configured with the incorrect speed or duplex on of the in-path interfaces

D.

Steelhead appliance is not able to acquire a “File Hold Key (FHK)”

E.

Steelhead appliance is not able to acquire an “Opportunistic Lock (oplock)”

F.

Steelhead appliance is not able to acquire a “Double Link (doulink)”

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Questions 55

The client-side Steelhead appliance has been configured for OOB Destination Transparency, what should the source IP/port be for the OOB connection?

Options:

A.

Client IP/random port

B.

Client-side Steelhead appliance in-path IP/random port

C.

Client IP/port 708

D.

Client-side Steelhead appliance in-path IP/port 708

E.

None of the above

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Questions 56

What deployment type supports fail-to-wire?

Options:

A.

Physical in-path

B.

Virtual in-path

C.

Out-of-path

D.

Virtual Steelhead appliance

E.

Proxy file server

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Questions 57

Which of the following are Steelhead Mobile Controller alarms? (Select 2)

Options:

A.

Memory paging

B.

Datastore errors

C.

Peer version mismatch

D.

SSL errors

E.

File system full

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Questions 58

In a quad Interceptor appliance deployment the directly connected pairs are configured in failover mode:

IC-A & IC-B are failover buddies

IC-C & IC-D are failover buddies

To prevent asymmetric routing IC-A should be configured to have a neighbor relationship with which of the following peer Interceptors? (Select 2)

Options:

A.

IC-B

B.

IC-C

C.

IC-D

D.

Interceptor appliance uses auto discovery to learn about each other

E.

Neighbor relationships are unnecessary in a quad Interceptor appliance deployment

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Questions 59

What type of reporting information will an Interceptor appliance store? (Select 2)

Options:

A.

Connection counts

B.

Total packets in and out

C.

Bytes and packets redirected to each neighbor Steelhead appliance

D.

Scalable Data Referencing (SDR) Status

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Questions 60

For a new connection, a Load Balancing rule matches but none of the target Steelhead appliances in the rule are available. What will happen to the new connection?

Options:

A.

The connection is passed through

B.

The next rule in the list is examined

C.

The Interceptor appliance triggers an alarm

D.

The Interceptor appliance discontinues redirecting any new connections and places this rule in admissions control

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Exam Code: 830-01
Exam Name: RCPE Certified Professional WAN Optimization
Last Update: May 2, 2024
Questions: 402
$64  $159.99
$48  $119.99
$40  $99.99
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