Citrix 1Y0-A21 Online Practice Questions and Exam Preparation

Citrix 1Y0-A21 Online Questions & Answers

• Question 41:

  Scenario: A network administrator needs to configure routing on a NetScaler appliance. The NetScaler is in a DMZ whose gateway is 10.54.80.1/24. There are no configured routes on the NetScaler. Given this topology, which is the appropriate routing configuration for the NetScaler?

  A. set default route 10.54.80.1
  B. add route 0.0.0.0 0.0.0.0 10.54.80.1
  C. set default route 0.0.0.0 0.0.0.0 10.54.80.1
  D. add route 0.0.0.0 255.255.255.255 10.54.80.1
  B. add route 0.0.0.0 0.0.0.0 10.54.80.1

• Question 42:

  Scenario: A company has contracts with multiple ISPs and would like to use all of them for Internet connections although some ISP routers are faster than others. The company also plans to use a NetScaler system for load balancing and failover.

  What can an administrator configure to ensure that all ISP connections are being used while avoiding retransmission or out-of-order packets in this environment?

  A. Multiple VLANs with Ingress rules
  B. Link load balancing with destination IP-based persistence
  C. Round robin load balancing with reverse RNAT configured
  D. A load balancing policy with the appropriate preferred IP and preferred port parameters configured
  B. Link load balancing with destination IP-based persistence

• Question 43:

  Scenario: An administrator has set up a NetScaler system with two interfaces connected to the DMZ network inside the organization's DMZ. The administrator configured the NSIP and MIP addresses and then created a virtual server on port 80 using HTTP in order to load balance the Web servers in the network environment. While reviewing the console messages, the customer sees several "channel muted" messages, high CPU utilization on the switch and receives complaints about slow response from the servers.

  Which two options can the administrator use to fix this issue? (Choose two.)

  A. Bind a VLAN to the interfaces with a SNIP.
  B. Set up link aggregation on the two interfaces.
  C. Remove one interface from the DMZ network.
  D. Configure a second mapped IP on the NetScaler.
  B. Set up link aggregation on the two interfaces.
  C. Remove one interface from the DMZ network.

• Question 44:

  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?

  A. SSLv3
  B. SSL Redirect
  C. SSL Session Reuse
  D. SSL Client Certificates
  C. SSL Session Reuse

• Question 45:

  Which load balancing method should an administrator configure so that all requests coming from a specified network are sent to the same server?

  A. Domain Hash
  B. Source IP Hash
  C. Destination IP Hash
  D. Source IP/Destination IP Hash
  B. Source IP Hash

• Question 46:

  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?

  A. Layer-3 mode is enabled.
  B. TCP buffering is enabled.
  C. The configured ACLs have not been applied/committed.
  D. The ACLs have not been propagated to both NetScalers in the HA pair.
  C. The configured ACLs have not been applied/committed.

• Question 47:

  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?

  A. Add an HTTPS monitor and type in the appropriate HTTPs request and response.
  B. Add an HTTP monitor, select the secure parameter and type in the appropriate HTTP response code.
  C. Add an HTTP monitor, select the secure parameter and type in the appropriate HTTP request and response.
  D. Add an HTTP-ECV monitor, select the secure parameter and type in the appropriate send and receive string.
  D. Add an HTTP-ECV monitor, select the secure parameter and type in the appropriate send and receive string.

• Question 48:

  Which IP address type must be unique to each NetScaler in an HA pair?

  A. MIP
  B. NSIP
  C. SNIP
  D. Load balancing VIP
  B. NSIP

• Question 49:

  An administrator is determining when a particular service was unavailable in the past due to a failure condition detected by the assigned monitor. Which NetScaler Configuration Utility option would report the service states detected in the past?

  A. View events
  B. Memory usage
  C. View dmesg boot
  D. TCP/IP Connections
  E. View console messages
  A. View events

• Question 50:

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

  A. Retries
  B. Failure Retries
  C. Success Retries
  D. Response timeout
  E. Response timeout threshold
  C. Success Retries