CompTIA CompTIA Mobility+ N10-005 Questions & Answers

• Question 811:

  Which of the following TCP/IP model layers does the OSI model Presentation layer map to?

  A. Transport

  B. Internet

  C. Application

  D. Network Interface

  Correct Answer: C

  The Application layer provides applications the ability to access the services of the other layers and defines the protocols that applications use to exchange data. There are many Application layer protocols and new protocols are always being developed.

• Question 812:

  Joe, a user, has a computer that has a link light on his network interface card (NIC); however, Joe is unable to access the Internet. Which of the following is the cause of this issue?

  A. Faulty GBIC

  B. Faulty SFP

  C. Cable is a crossover

  D. VLAN mismatch

  Correct Answer: D

  As user has link light on NIC that means he has connectivity with switch so he need to check his vlan assignment.

• Question 813:

  A network technician is troubleshooting signal problems with certain WAPs in an office and finds consistently high ping times across the units. Such an issue is called which of the following?

  A. Latency

  B. Attenuation

  C. Crosstalk

  D. Frequency hopping

  Correct Answer: A

  During the high ping time users are using most of the bandwidth that causes latency so signal strength get affected by this.

• Question 814:

  On which of the following OSI model layers would a MAC address be used?

  A. Network

  B. Data Link

  C. Transport

  D. Physical

  Correct Answer: B

  The ITU-T G.hn standard, which provides high-speed local area networking over existing wires (power lines, phone lines and coaxial cables), includes a complete data link layer which provides both error correction and flow control by means of a selective repeat Sliding Window Protocol.

• Question 815:

  Given a subnet mask of 255.255.255.0, how many usable IP addresses would be in that subnet?

  A. 250

  B. 254

  C. 255

  D. 256

  Correct Answer: B

  The Subnet Mask however, determines the "class" of a Network. 255.255.255.0 is a "Class C" network.A class c network can host up to 254 pc's

• Question 816:

  A technician needs to ensure that traffic from a specific department is separated within several switches. Which of the following needs to be configured on the switch to separate the traffic?

  A. Duplex settings

  B. SNMP string

  C. VLAN assignments

  D. Spanning tree

  Correct Answer: C

  Explanation: A VLAN is a group of end stations with a common set of requirements, independent of physical location. VLANs have the same attributes as a

  physical LAN but allow you to group end stations even if they are not located physically on the same LAN segment.

• Question 817:

  Several users from the finance department report that they are able to access the Internet, but unable to connect to their financial applications. The network technician is unable to ping the finance server. The technician decides to check the switch and determines that Internet access is working.

  Which of the following is a possible cause of the access issues?

  A. Faulty cable

  B. Remote management disabled

  C. Improper VLAN assignment

  D. Mismatched duplex

  Correct Answer: C

  Explanation: Finance Server is placed in same VLAN which is assigned to finance users if they are able to access internet that's means connectivity to switch is

  good, so we have to check the VLAN assigned to users.

• Question 818:

  In which of the following layers of the OSI model would MAC addressing be found?

  A. Network

  B. Application

  C. Data Link

  D. Transport

  Correct Answer: C

  The ITU-T G.hn standard, which provides high-speed local area networking over existing wires (power lines, phone lines and coaxial cables), includes a complete data link layer which provides both error correction and flow control by means of a selective repeat Sliding Window Protocol.

• Question 819:

  The Network Interface Layer of the TCP/IP model corresponds to which of the following layers of the OSI model? (Select TWO).

  A. Network

  B. Session

  C. Transport

  D. Physical

  E. Data link

  Correct Answer: DE

  The network layer is responsible for packet forwarding including routing through intermediate routers, whereas the data link layer is responsible for media access control, flow control and error checking.

• Question 820:

  A user's laptop is unable to keep a stable network connection.

  Which of the following measures would MOST likely need to be configured?

  A. SSID name

  B. WAP encryption strength

  C. WAP radio power

  D. Channel overlay

  Correct Answer: C

  WAP radio power is the signal strength through which you can specify the range from which you can stay connected to the network and access internet. Here, when the user is not able to maintain a stable connection then it is a problem with the signal strength for sure so you can try to increase the signal strength by increasing the radio power.