CompTIA CompTIA Mobility+ N10-005 Questions & Answers

• Question 251:

  An administrator would like to decrease the load time of common websites that employees review daily. Which of the following can be installed?

  A. Load balancing

  B. VPN concentrator

  C. Caching server

  D. Fault tolerance

  Correct Answer: C

• Question 252:

  The technician is working on a DNS problem.

  Which of the following software tool is the technician MOST likely to use to troubleshoot this issue?

  A. nslookup

  B. ipconfig

  C. ping

  D. nbtstat

  Correct Answer: A

• Question 253:

  Which of the following tools allows an administrator to identify a cable?

  A. Multimeter

  B. Cable stripper

  C. Toner

  D. Punch down tool

  Correct Answer: C

• Question 254:

  Which of the following can assist when troubleshooting a cable that meets the 1000BaseLX specification?

  A. Multimeter

  B. OTDR

  C. Link state

  D. Protocol analyzer

  Correct Answer: B

• Question 255:

  Which of the following is the control when observing network bandwidth patterns over time?

  A. Network log

  B. Baseline

  C. Flow data

  D. Interface statistics

  Correct Answer: B

  To successfully baseline a network it is important to consider two functions; performance at protocol level and performance at application level. There are many significant metrics to consider at the protocol level, but only a few which are critical. The most important is bandwidth utilization compared with bandwidth availability. The most likely cause of poor network performance is insufficient bandwidth. Trending bandwidth utilization allows you to recognize problem areas, provide enough bandwidth to reach performance objectives, and predict future capacity requirements. Changes in bandwidth utilization patterns also provide a clear indication of network usage alterations, such as a change in end-user behavior, or the unauthorized addition of an application.

• Question 256:

  Users inform an administrator that the network is slow. The administrator notices the bulk of the traffic is SIP and RTP traffic. Which of the following could the administrator do to help BEST alleviate the traffic congestion for the users?

  A. Create an ACL on the switches and routers that are dropping SIP and RTP packets.

  B. Create a QoS policy prioritizing users over RTP and SIP traffic.

  C. Create another VLAN for SIP and RTP traffic.

  D. Create a rule to throttle SIP and RTP to 10Kbps or less.

  Correct Answer: C

  As if we will create a vlan for sip and rtp traffic only this traffic will flow from the ports then .

• Question 257:

  Which of the following methods would be implemented to correct a network slowdown caused by excessive video streaming?

  A. Traffic shaping

  B. Proxy server

  C. VPN concentrator

  D. High availability

  Correct Answer: A

  As traffic shaping will prioritize the video packets over another packets and then video packets will travel fast on bandwidth.

• Question 258:

  A technician is troubleshooting Internet connectivity for a PC. Which of the following is MOST likely the reason for Internet connectivity issues upon inspecting the routing table?

  

  A. The router should be listed as 224.0.0.1

  B. The NIC is set to the wrong subnet mask

  C. The route of last resort is missing

  D. Loopback traffic is weighted higher than NIC interface traffic

  Correct Answer: C

  The default route is missing from the table.

  It looks like this:

  Network Destination Netmask Gateway Interface Metric

  0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.12 25

• Question 259:

  An organization finds that most of the outgoing traffic on the network is directed at several Internet sites viewed by multiple computers simultaneously. Which of the following performance optimization methods would BEST alleviate network traffic?

  A. Load balancing internal web servers

  B. Redundant network resources

  C. Implement fault tolerance on the WAN

  D. Implement caching engines

  Correct Answer: D

  A cache server is a dedicated network server or service acting as a server that saves Web pages or other Internet content locally. By placing previously requested information in temporary storage, or cache, a cache server both speeds up access to data and reduces demand on an enterprise's bandwidth.

• Question 260:

  A technician sees suspicious traffic coming from a computer connected to a WAP. Which of the following can be used to stop this traffic while troubleshooting the problem?

  A. tracert

  B. QoS

  C. ipconfig

  D. MAC filtering

  Correct Answer: D

  By doing MAC filtering technician can block the data coming from a specific mac address.