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| Number of exam questions | Exam name | Exam code |
| 15 | Analyzing Citrix NetScaler Advanced Topics: Security, Management, and Optimization | 1y0-340 |
Question 1:
A Citrix Engineer needs to prevent an attack against insecure operating-system or web-server software. The attack can cause the system to crash or behave unpredictably when it receives a data string that is larger than it can handle. Which security check on the Application Firewall can the engineer enable to prevent such attacks?
A. Start URL
B. Deny URL
C. Buffer Overflow
D. Field Format
Correct Answer: C
Question 2:
A Citrix Engineer has deployed Front-end Optimization on NetScaler. The following are the snippets of the content before and after optimization. Before Optimization:
Which optimization technique has been applied to the content?
A. Convert linked JavaScript to inline JavaScript
B. Minify JavaScript
C. Move JavaScript to End of Body Tag
D. Inline JavaScript
Correct Answer: B
Question 3:
Scenario: A Citrix Engineer configures an Application Firewall HTML SQL Injection Check and sets it to BLOCK and to use SQLSplCharANDKeyword as the SQL injection type. The engineer checks the logs and finds that nothing is being blocked.
What can be the cause of the Application Firewall failing to block the attack?
A. The request contains SQL Wildcard Characters.
B. The request neither contains SQL Special Characters nor keywords.
C. The request only contains SQL Special Characters.
D. The request only contains SQL keywords.
Correct Answer: B
Question 4:
Which TCP flag will the NetScaler Application Firewall module send in response to a malformed/non-RFC complaint request from a client?
A. FIN+ACK packet with a window size set to 9845
B. RST packet with a window size set to 9845
C. RST +ACK packet with a window size set to 0
D. FIN packet with a window size set to 0
Correct Answer: B
Question 5:
The NetScaler processes HTTP/2 web client connections to the backend web servers by _________. (Choose the correct option to complete the sentence.)
A. Converting the HTTP/2 headers to HTTP/1.1 headers and forwarding them to the web servers.
B. Dropping HTTP/2 requests as it is NOT supported by web servers.
C. Passing- through all HTTP/2 traffic to the web servers.
D. Converting HTTP/2 to HTTP 0.9 and forwarding the packets to the web servers.
Correct Answer: A
Question 6:
Scenario: A Citrix Engineer receives the following error when accessing content from a virtual server:
“Page cannot be displayed.”
However, the content is accessible when connecting directly to the web server.
The engineer captured the traffic using nstrace and found that the amount of data sent from the web server exceeds the content length defined in the HTTP header.
Which action can the engineer take to resolve the issue?
A. Disable Drop extra CRLF in the HTTP Profile.
B. Enable Drop extra data from server in the HTTP Profile.
C. Increase the Content length in the Application Firewall Profile.
D. Disable Drop extra data from server in the HTTP Profile.
Correct Answer: B
Question 7:
An attacker inserting a malicious code that compromises the trust relationship between users and a web application is an example of a (n) _____ attack. (Choose the correct option to complete the sentence.)
A. Cookie Tampering
B. SQL Injection
C. Form Field Consistency
D. Cross-site Scripting
Correct Answer: D
Question 8:
A Citrix Engineer needs to configure an Application Firewall policy. According to company policies, the engineer needs to ensure that all the requests made to the website are originating from North America. Which policy expressions will help the engineer accomplish the requirement?
A. CLIENT.IP.SRC.MATCHES_LOCATION (“North America.US.*.*.*.*”)
B. CLIENT.IP.SRC.MATCHES_LOCATION (“North America.US.*.*.*.*”). NOT
C. CLIENT.IP.DST.MATCHES (“North America.US.*.*.*.*”)
D. CLIENT.IP.SRC.MATCHES (“North America.US.*.*.*.*”)
Correct Answer: A
Question 9:
A Citrix Engineer is configuring an Application Firewall Policy to protect a website. Which expression will the engineer use in the policy?
A. HTTP.RES.IS_VALID
B. HTTP.REQ.HOSTNAME.EQ (“true”)
C. HTTP.RES.HEADER (“hostname”).EQ (“true”)
D. HTTP.REQ.IS_VALID
Correct Answer: B
Question 10:
Scenario: A Citrix Engineer has configured NetScaler Management and Analytics System (NMAS) with the default settings. In this configuration, the total number of virtual servers is lower than the number of installed virtual server licenses. Which type of virtual server will NOT be automatically licensed by the NMAS on discovered instances?
A. Non-addressable virtual server
B. Load Balancing virtual server
C. SSL Offload virtual server
D. Content Switching virtual server
Correct Answer: A
Question 11:
Which content type takes the maximum advantage of web caching mechanisms to boost performance?
A. Pseudo-Dynamic Content
B. Pseudo-Static Content
C. Static Content
D. Dynamic Content
Correct Answer: D
Question 12:
Which reason can cause fail over in a NetScaler Management and Analytics System (NMAS) High Availability pair?
A. A secondary server loses connectivity in the LAN.
B. The engineer manually forces the secondary server to shut down.
C. A primary server encounters a critical software issue.
D. A primary server does NOT receive the SNMP traps from the instances connected.
Correct Answer: C
Question 13:
Scenario: A Citrix Engineer has migrated an application to NetScaler to secure it from application layer attacks. The engineer receives a complaint that the application is timing out while users are actively accessing the page. Those users are forced to reestablish the connection.
What can be the cause of this issue?
A. The maximum session lifetime is NOT configured.
B. The session time out is configured to a low value.
C. The application is configured with a low session timeout.
D. The maximum session lifetime is less than the session timeout.
Correct Answer: B
Question 14:
Scenario: A Citrix Engineer has configured the Signature file with new patterns and log strings and uploaded the file to Application Firewall. However, after the upload, the Signature rules are NOT implemented. What can the engineer modify to implement Signature rules?
A. The Signature update URL should have an older version than the one on Application Firewall.
B. The new Signature file should have new ID and version number.
C. The NetScaler version should be upgraded before upgrading the signatures.
D. The Signature upgrade will take effect only after a restart.
Correct Answer: D
Question 15:
A Citrix Engineer needs to configure an application firewall profile to ensure that the images uploaded on the website are NOT malicious. The engineer needs to create a policy to filter the upload requests and ensure that they are in JPEG format.
Which expression can the engineer use to fulfill this requirement?
A. http.req.url.endswith (“.jpeg) and and http.req.method.eq (POST)
B. http.req.url.contains (“.jpeg) and and http.req.method.eq (GET)
C. http.req.url.endswith (“.jpeg) || http.req.method.eq (GET)
D. http.req.header (“Content-Type”).contains (“image/jpeg”) || http.req.method.eq(POST)
Correct Answer: D
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