Riverbed Riverbed Certifications 830-01 Questions & Answers

• Question 221:

  Which section of the Steelhead appliance Management Console can help identify speed/duplex errors? (Select 2)

  A. View Logs

  B. Current Connections

  C. Alarm Status

  D. Interface Statistics

  E. Monitored Ports

  Correct Answer: AD

• Question 222:

  The Optimization service has been disabled on a Steelhead appliance. Which of the following events occur as a result?

  A. LAN and WAN interfaces stop intercepting

  B. Primary interface becomes disabled

  C. AUX interface becomes disabled

  D. The Steelhead appliance reboots

  Correct Answer: A

• Question 223:

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

  A. sysdump

  B. dump generate

  C. debug generate dump

  D. sysdump generate dump

  E. dump generate -w filename

  Correct Answer: C

• Question 224:

  You need to take a full packet trace from the WAN interface of a Steelhead appliance to send into technical support. Which of the following commands will achieve this assuming typical Ethernet MTU? (Select 2)

  A. tcpdump –i wan0_0 –s 0 –w filename

  B. tcpdump –i wan0_0 –s 1500 –w filename

  C. tcpdump –I wan0_0 –w filename

  D. tcpdump –i wan0_0 –w filename

  E. tcpdump –I wan0_0 –s 1500 –w filename

  Correct Answer: AB

• Question 225:

  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)

  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

  Correct Answer: CD

• Question 226:

  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?

  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

  Correct Answer: C

• Question 227:

  A customer is reporting higher than normal CPU utilization on certain routers in their network. Looking at

  their Steelhead appliance logs, they see "intercept/localkernel/icore.c:1463] nat_check:

  SYN packet for already NAT'd connection 100.100.100.33:1611 -> 100.200.200.32:80 ==>

  100.201.201.25:7801". All connections are showing up optimized but the logs persist. Given the exhibit,

  

  what is the likely problem?

  A. Lost Opportunistic Lock

  B. SMB Signing

  C. Fixed-target rule is needed

  D. Asymmetric Route

  E. Packet Ricochet

  Correct Answer: E

• Question 228:

  In a recent in-path deployment, users are complaining that some of their CIFS drive-mapping connections do not appear to be optimized. Upon further analysis, you discover the file shares reside on a domain controller. The Steelhead appliances are deployed in a default configuration. Which of the following is the most likely cause of the problem?

  A. The Steelhead appliance lost an Opportunistic Lock on the file

  B. SMB Signing is set to required

  C. No fixed-target rules installed

  D. Misconfigured Steelhead appliance

  E. Packet ricochet

  Correct Answer: B

• Question 229:

  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?

  A. Duplex mismatch

  B. Firewall blocking auto-discovery probes

  C. No fixed-target rules installed

  D. A and C

  E. A, B, and C

  Correct Answer: A

• Question 230:

  Refer to the exhibit.

  

  A customer has a server-side out-of-path deployment, and reports that connections from some of their

  remote branch offices are not being optimized. What is the most likely problem?

  A. A missing fixed-target rule on the server-side Steelhead appliance

  B. A missing fixed-target rule on the client-side Steelhead appliance

  C. The WAN interface is connected to the server-side Steelhead appliance

  D. The LAN interface is connected to the server-side Steelhead appliance

  E. Using port 7810 in the fixed-target rule instead of 7800

  Correct Answer: B