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1Y0-A21 Real Exam Questions

Basic Administration for Citrix NetScaler 9.2

104 questions available · Page 1 of 11

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Question 1 Single choice

Scenario: A banking company plans to use their NetScaler system to improve their site performance. They will use NetScaler to direct traffic to different servers so that users accessing the mortgage page go to one set of servers, users accessing the banking page go to a second set of servers, users applying for a student loan go to a third set of servers and all other traffic goes to the home page. The administrator has already enabled the necessary features and bound the appropriate services to the load balancing virtual servers.
In which order could the administrator perform the actions to define a content switching virtual server to meet these requirements?

  1. A

    Add the content switching virtual server, add the default policy and add the other policies; then bind the
    load balancing virtual server and policy to the content switching virtual server; then bind the default load
    balancing virtual server to the content switching virtual server with the default policy.

  2. B

    Add the content switching virtual server, bind the load balancing virtual server to the content switching
    virtual server, add a policy and bind the policy to the load balancing virtual server; then bind the default
    load balancing virtual server to the content switching virtual server without associating a policy.

  3. C

    Add the policy, add the default policy, bind the policy to the load balancing virtual server, add the content switching virtual server, bind the load balancing virtual server to the content switching virtual
    server; then bind the default load balancing virtual server to the content switching virtual server with the
    default policy.

  4. D

    Add the named expressions, create the appropriate content switching policy and add the content
    switching virtual server; bind the load balancing virtual server and policy to the content switching virtual
    server and then bind the default load balancing virtual server to the content switching virtual server without associating a policy.

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Correct answer: D

Question 2 Single choice

Scenario: An administrator is managing a network environment that contains five datacenters, all of which are in different areas of the same country. The administrator plans to configure the NetScaler system to load balance the datacenters so that they can be used for disaster recovery.

How should the administrator configure the NetScaler system for disaster recovery and to optimize the user experience?

  1. A

    Enable HA and use cache load balancing.

  2. B

    Enable HA and use server load balancing.

  3. C

    Enable GSLB and use the proximity method.

  4. D

    Enable GSLB and use the round robin method.

Show answer and explanation

Correct answer: C

Question 3 Single choice

Scenario: An administrator must configure a new NetScaler 9.2 deployment at a large organization. The administrator must use the following information when configuring the NetScaler system:

IP addresses to use when configuring the NetScaler 9.2 deployment:

VIP: 12.15.40.49

MIP: 10.165.40.69

NSIP: 10.165.40.68

DNS Server: 78.35.14.99

Internal Web server IP address: 10.165.40.10

An HTTP virtual server is created and HTTP services are bound to the default settings.

From which IP address will the Web server receive communications from the NetScaler system in this scenario?

  1. A

    12.15.40.49

  2. B

    78.35.14.99

  3. C

    10.165.40.30

  4. D

    10.165.10.68

  5. E

    10.165.40.69

Show answer and explanation

Correct answer: E

Question 4 Single choice

An administrator wants to configure the virtual server and services so that existing connections stay open when a service is marked down but NOT when a virtual server is marked down.

How must the administrator configure the service and virtual server to reflect this dependency?

  1. A

    set lb vserver lbv1 -downStateFlush ENABLED
    set service svc1 -downStateFlush ENABLED

  2. B

    set lb vserver lbv1 -downStateFlush DISABLED
    set service svc1 -downStateFlush ENABLED

  3. C

    set lb vserver lbv1 -downStateFlush ENABLED
    set service svc 1 -downStateFlush DISABLED

  4. D

    set lb vserver lbv1 -downStateFlush DISABLED
    set service svc1 -downStateFlush DISABLED

Show answer and explanation

Correct answer: C

Question 5 Single choice

An administrator needs to configure a health check for Web servers so that the probe fails if the monitor does NOT receive the expected data in the body of the response for an encrypted HTTP request.

How should the administrator configure the health check in the Configuration Utility to meet this requirement?

  1. A

    Add an HTTPS monitor and type in the appropriate HTTPs request and response.

  2. B

    Add an HTTP monitor, select the secure parameter and type in the appropriate HTTP response code.

  3. C

    Add an HTTP monitor, select the secure parameter and type in the appropriate HTTP request and response.

  4. D

    Add an HTTP-ECV monitor, select the secure parameter and type in the appropriate send and receive string.

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Correct answer: D

Question 6 Multiple choice

Scenario: An administrator has set up the configuration of an HA pair so that each NetScaler appliance has four connected interfaces. In addition, two pairs of interfaces for each appliance are configured in a link aggregation channel.

Which two additional steps should the administrator take to set up HA? (Choose two.)

  1. A

    Configure a route monitor on the NetScaler.

  2. B

    Disable the interfaces that are not connected.

  3. C

    Enable HA monitoring on the physical interfaces only.

  4. D

    Enable HA monitoring on the link aggregation channel.

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Correct answers: B, D

Question 7 Single choice

Which parameter on a monitor specifies the consecutive number of successful probes required to mark a service as UP?

  1. A

    Retries

  2. B

    Failure Retries

  3. C

    Success Retries

  4. D

    Response timeout

  5. E

    Response timeout threshold

Show answer and explanation

Correct answer: C

Question 8 Single choice

In order to prevent configuration errors from typographical errors and to streamline the creation of expressions, an administrator should leverage __________ when creating policies. (Choose the correct option to complete the sentence.)

  1. A

    pattern sets

  2. B

    entity templates

  3. C

    inline expressions

  4. D

    named expressions

Show answer and explanation

Correct answer: D

Question 9 Single choice

Scenario: An administrator finished installing a NetScaler appliance and configured a load balancing virtual server that has four services bound. The configured load balancing method for the virtual server is set to use least connection. The administrator later added a fifth server to the virtual server. However, when testing load balancing, the administrator finds that the virtual server is using round robin instead of least connection.

Why would the NetScaler system be using round robin as the load balancing method instead of least connection?

  1. A

    The administrator did not save the configuration correctly.

  2. B

    The NetScaler is using slow start mode for the virtual server.

  3. C

    Least connection will only function when more than five servers are load balanced.

  4. D

    Least connection is not a load balancing method that can be used for Web servers.

Show answer and explanation

Correct answer: B

Question 10 Single choice

Scenario: The NetScaler administrator has set up two NetScalers in HA. When the administrator checks the HA nodes, the secondary unit shows as DOWN. Details were gathered from the secondary unit and are displayed below.

ID. 0

IP Address: 12.12.44.107

Node State. NOT UP

Master State. Secondary

Fail-Safe Mode. OFF

INC State. DISABLED

Synchronization State. SUCCESS

HA Propagation: ENABLED

Enabled Interfaces: 1/5 1/6 1/7 1/8

Disabled Interfaces: 1/1 1/2 1/3 1/4

SSL Card status: UP

HA Monitor on Interfaces: 1/6 1/7 1/8

Interfaces on which heartbeats are not seen: 1/5 1/6

Interfaces causing partial failure. 1/6
Hello Interval (msecs): 200

Dead Interval (secs): 3

Node in Secondary state for: 15 Min(s) 0 Sec(s)

ID. 1

IP Address: 12.12.44.106

Node State. UP

Master State. Primary

Fail-Safe Mode. OFF

INC State. DISABLED

Synchronization State. ENABLED

HA Propagation: ENABLED

Enabled Interfaces: 1/5 1/6 1/7 1/8

Disabled Interfaces: 1/1 1/2 1/3 1/4

SSL Card status: UP

HA Monitor on Interfaces: 1/7 1/8

Interfaces on which heartbeats are not seen: 1/5 1/6 Given this information, what could be causing Node 0 to show as NOT UP?

  1. A

    Fail-Safe mode is off.

  2. B

    The node IDs are not the same.

  3. C

    Interface 1/6 is not receiving HA heartbeat packets.

  4. D

    Interface 1/5 is not receiving HA heartbeat packets.

  5. E

    The secondary unit always shows as down until there is a failover.

Show answer and explanation

Correct answer: C