1Y0-A21 - Basic Administration for Citrix NetScaler 9.2
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Scenario: A new network administrator has been hired for an organization that already has a NetScaler system in place. The new administrator wants toleverage existing application templates to configure new web applications. If the administrator does leverage an application template, which additional step must the administrator take before the application is available to the users?
Provide new public endpoints and back-end services for the application.
Scenario: A network administrator working with two NetScaler systems has encountered an issue with HA. The administrator notices that HA synchronization is failing. The administrator has already run the <show node> command on both nodes but needs more information. Which two additional steps should the administrator take to collect the appropriate data in order to troubleshoot this issue? (Choose two.)
Run show techsupport from both NetScalers.
Run /netscaler/nstrace.sh -sz 0 to gather an nstrace.
Which page is displayed to the user if a catch-all policy is NOT defined on a content switching virtual server configured on the NetScaler?
Users get an HTTP/1/.1 Error.
Scenario: A specific logging application hosted on one Web server in a farm requires the client IP address in order to process information correctly in an environment where a NetScater system is load balancing all the Web servers. This application is the only one that requires the client P address to function properly. How must an administrator configure Client IP header insertion appropriately for this scenario?
As an advanced service option
Which trap can an administrator set on a NetScaler system so that an alert is sent whenever an SNMP management application that does NOT have access privileges attempts to access a NetScaler?
An administrator wants to configure a TCP service so that traffic can reach the associated server when the monitor assigned to the service is failing. Which attribute of the TCP service must the administrator configure to allow traffic to pass to the associated server in this scenario?
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?
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.
Scenario: A customer has two datacenters in geographically dispersed locations, both serving content for a web-based application. Content for both datacenters should always be available. Which method should an administrator use to make content from both datacenters available at all times?
Scenario: An administrator is working with a Citrix consultant to architect and implement a Netscaler solution. They plan to use GSLB and DNS views in the environment. In which two manners can the administrator configure the Netscaler system to be able to configure DNS views that support GSLB records? (Choose two.)
Configure as a ADNS.
Configure as a DNS proxy.
An administrator is configuring a virtual server for encrypted traffic from clients that needs to be decrypted prior to being forwarded to the back-end servers. Which type of virtual server and service should the administrator configure?
SSLTCP virtual server and TCP service
Which two options can an administrator leverage when setting the nsroot password during the initial setup of a NetScaler system? (Choose two)
The Setup Wizard
The set system user command
An administrator has executed the following commands: enable ns feature lb add service s1 126.96.36.199 HTTP 80 add service s2 188.8.131.52 HTTP 80 addlbvserver s1 HTTP 184.108.40.206 80 However, the administrator notices the virtual server state is DOWN. Which action must the administrator take to set the virtual server state to UP?
Bind the two services to the lb vserver vs1
Cli syntax in a given example how to add a vlan via cli?
add vlan <id>
bind vlan <id>
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)
Which spillover type should an administrator configure to divert SSL sessions to a backup virtual server once they exceed a specified threshold?
According to best practices, what are the three recommended methods for load balancing cache servers on a NetScaler device? (Choose three.)
Destination IP hash
Scenario: A financial company needs to maintain end-to-end security in network traffic. The company also requires that an administrator reduce the CPU levels for back-end servers in their environment because it requires end-to-end security. Which setting on the SSL virtual server reduces CPU utilization on the back-end?
SSL Session Reuse
Which three parameters does an administrator need to monitor a configured DNS service on a NetScaler? (Choose three.)
An administrator needs to add a new node to an existing NetScaler system to create an HA pair. In order to prevent the new node from taking over as primary, the administrator should select the __________ setting on the new node. (Choose the correct option to complete the sentence.)
Which parameter in a monitor specifies the consecutive number of successful probes required to mark a service as DOWN?
Response timeout threshold
Scenario: An administrator needs to configure a NetScaler device so that a set of back-end servers in a LAN can initiate connections to the internet ACLs areconfigured in this environment. What must the administrator configure to meet the needs of this scenario?
RNAT for the subnet that includes the LAN IP address
How to add a route to the nescaler via cli?
add route 0.0.0.0 0.0.0.0 10.102.29.1
Scenario: An ISP provides SaaS to enterprise customers as part of a cloud offering. A Netscaler is configured to support multi-tenant deployments. Traffic isolation for each enterprise (tenant) is acheived using VLAN segmentation for each enterprise customer. As an example, incoming client requests from enterprise customers are assigned to seperate VLANs. Which feature can an administrator configure to specify that the VIP for customer1 will only listen to requests coming from VLAN1 and the VIP for customer2 will only listen to requests from VLAN2?
An administrator set up a NetScaler pair in HA but later noticed that the configuration changes made on the primary node were NOT synchronized with the secondary node. Which configuration setting must be corrected for successful configuration synchronization between both nodes m HA mode?
nsroot password is not identical for both nodes.
Lets upgrade our netscaler via cli. Where should the document libary be extracted prior to running th upgrade?
dont remember exactly - extract to path a
Which mode is reuired for the given scenario ?
An administrator set up a Netscaler pair in HA but later noticed that the configuration changes made on the primary node were NOT synchronized with the secondary node. Which configuration setting must be corrected for successful configuration synchronization between both nodes in HA mode.
RPC node password is not identical for both nodes.
What can an administrator configure to perform a health check for a SVC1, which is transferring HTTPS traffic so that a probe is only sent when there is no traffic to the server?
An HTTP-Inline monitor with the secure parameter selected
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.)
Disable the interfaces that are not connected.
Enable HA monitoring on the link aggregation channel.
Scenario: An administrator has set up a NetScaler in HA mode and now wants to bind the SSL certificate to one of the SSL virtual servers. However, the administrator notices that the command failed on the secondary node while succeeding on the primary node. Both nodes in HA are healthy, with successful configuration synchronization and command propagation. Which reason explains the command failure on the secondary node?
SSL certificate is not present on secondary node.
Scenario: An administrator needs to configure services and virtual servers for connection-based content switching of TCP traffic. The traffic must stay encrypted when passing between appliances or servers. Which types of services and virtual servers should the administrator configure for this environment?
SSL_TCP type of load balancing virtual servers, content switching virtual servers and services for the NetScaler
Scenario: An administrator is configuring two NetScaler systems in an HA pair. The administrator configured LDAP Authentication to allow domain administrators to manage the NetScaler appliances and also created an authentication server profile and policy. Afterwards, the administrator plans to verify which groups are extracted upon login by the intended users during testing of the authentication server profile and policy. Which of the following commands from the NetScaler shell will display the extracted groups?
An administrator wants to limit access to the NetScaler GUI and has configured ACLs to achieve this; however, everyone is still able to access the NetScaler administration tools. What could be causing this issue?
The configured ACLs have not been applied/committed.
An administrator has noticed a degradation in performance from the Web servers when delivering secure web applications in the network environment. Assuming a NetScaler system is deployed to improve site performance, which feature must first be enabled to allow for other acceleration benefits for secure traffic?
Configure the SSL offload feature on the NetScaler system.
An administrator set up a NetScaler pair in HA but noticed that the secondary node status is showing as DOWN. Which two configurations should be made on the secondary node to bring the node status to UP in HA, according to best practices? (Choose two.)
Disable unused interfaces.
Disable HAMON on disabled interfaces.
What should an administrator configure on a NetScaler to remove server-side compression and enable compression on the NetScaler?
Disable Allow Server-Side Compression (set cmp parameter -serverCmp off).
When viewing the Dashboard, which information would indicate to an administrator that server performance has improved after enabling caching?
Server-side request rate decreases.
Anadministrator must first enable the________ feature before a URL transformation policy can be used in a network environment. (Choose thecorrect option to complete the sentence)
Scenario: An administrator is configuring a NetScaler for a network environment where the back-end servers are located on different subnets. The administrator will need to configure the NetScaler to communicate with the different subnets. Which two steps should the administrator take to maintain the communication between the NetScaler and the back-end servers? (Choose two.)
Ensure USNIP mode is enabled.
Configure SNIPs for the server subnets.
Scenario: An administrator introduced two new servers into a server farm; the servers can handle more traffic than the older servers. The current load balancing method set for the virtual server managing the traffic for this group of servers is least connections. The administrator wants to maintain that load balancing method but also wants to use the new servers to improve performance by sending more traffic to them than to the older servers. Which advanced option must the administrator configure to achieve this?
Scenario: An administrator has created and configured services on load balanced virtual servers.The administrator then enabled the compression feature on a NetScaler deployment using the Configuration Utility. After adding additional services, the administrator decides to check the Dashboard for the compression statistics. However, when looking over the statistics, the administrator notices an extremely low count in the policy hit counter What could be causing the low count in the policy hit counter?
The administrator failed to bind the HTTP services to an SSL load balancing virtualserver, and failed to bind the SSL services to an HTTP load balancing virtual server.
Scenario: An administrator has set up the configuration of an HA pair so that each NetScaler application has four connections interfaces. In addition, two pairs of interfaces for each applianceare configured in a link aggregation channel. Which two additional steps should the administrator take to set up HA? (Choose two)
Disable interfaces that are not connected.
Enable HA monitoring on the link aggregation channel.
When leveraging the Dashboard, which information would indicate to an administrator that server performance has been improved after enabling caching in a network environment?
Server-side request rate decreases
An administrator plans to configure a content filtering policy to drop trace and connect methods. Which expression should an administrator use in the content filtering policy to explicitly drop trace and connect methods?
REQ.HTTP.METHOD == TRACE || REQ.HTTP.METHOD == CONNECT
Scenario: An administrator wants to change the NSIP in the current NetScaler deployment. However, when the administrator tries to change the IP in the GUI, the IP is shown as grayed out and cannot be changed. The administrator then tries to add a new NSIP but finds that there is no option in the GUI to add a new NSIP. Which command can the administrator run from the command line to change the NSIP on the NetScaler?
Scenario: An events Starting company plans to use the content switching feature of NetScaler to parse traffic so that users purchasing tickets or answering surveys go to group A servers, users accessing Images go to either group B or C servers depending on the ticket category and all other traffic goes to group D. All servers are in the same web farm. Which two actions must an administrator perform to correctly define the content switching virtual server so that traffic NOT going to groups A - C gets directed to group D? (Choose two,)
Bind a load balancing virtual server to the appropriate service for the web farm.
Bind the appropriate load balancing virtual server to the content switching virtual server with the appropriate policy for content group D.
Scenario: An administrator has created and configured services on load balanced virtual servers. The administrator then enabled the compression feature on a NetScaler deployment using the Configuration Utility. After adding additional services, the administrator decides to check the Dashboard for the compression statistics. However, when looking over the statistics, the administrator notices an extremely low count in the policy hit counter. What could be causing the low count in the policy hit counter?
The administrator has failed to manually enable compression for the services created prior to enabling the compression feature.
What modes are available for spillover?
What is a SNMP trap with minumum severity?
Scenario: An organization has just purchased NetScaler appliances and is in the process of reconfiguring their network environment. As a requirement, the local network administrator must set up their network environment with URL transformations in order to modify complex URLs that are difficult to remember. Which three steps must the administrator take to complete the URL transformation process? (Choose three.)
Enable the Rewrite feature.
Create the URL transformation profile.
Create and bind the URL transformation policy for HTTP requests and responses.