CompTIA CompTIA Mobility+ N10-005 Questions & Answers

• Question 801:

  Which of the following is the common port used for IMAP?

  A. 25

  B. 53

  C. 143

  D. 443

  Correct Answer: C

  The Internet Message Access Protocol (commonly known as IMAP) is an Application Layer Internet protocol that allows an e-mail client to access e-mail on a remote mail server. The current version, IMAP version 4 revision 1 (IMAP4rev1), is defined by RFC 3501. An IMAP server typically listens on well-known port 143

• Question 802:

  Ann, a new user, has a workstation that has connectivity to the printer located in her department, but cannot access the Internet. The result of an ipconfig command on Ann's workstation is as follows:

  IP address: 192.168.0.124 Subnet Mask: 255.255.255.128 Default Gateway: 192.168.0.254

  Which is MOST likely preventing the user from accessing the Internet?

  A. Duplicate IP address

  B. Incorrect gateway

  C. Incorrect VLAN

  D. Bad switch port

  Correct Answer: B

  We usually give default gateway as an end device which is directly connected with ISP so in this case user has lost his connectivity with due to wrong default gateway configured.

• Question 803:

  Users are reporting that some Internet websites are not accessible anymore.

  Which of the following will allow the network administrator to quickly isolate the remote router that is causing the network communication issue, so that the problem can be reported to the appropriate responsible party?

  A. Ping

  B. Protocol analyzer

  C. Tracert

  D. Dig

  Correct Answer: C

  Tracet command will tell the administrator which route is not present or which is present so he will come to know whether he has appropriate route or not.

• Question 804:

  Which of the following defines the amount of time a host retains a specific IP address before it is renewed or released?

  A. DHCP lease

  B. DNS suffix

  C. Subnet mask

  D. DHCP reservation

  Correct Answer: A

  By default, each IP address assigned by a DHCP Server comes with a one-day lease, which is the amount of time that the address is valid.

• Question 805:

  A user wants to connect seven PCs together for a game night. Which of the following should the user install to help with this task?

  A. Media convertor

  B. Switch

  C. Firewall

  D. Bridge

  Correct Answer: B

  They connect multiple PCs, printers, servers and other hardware. Switches allow you to send information, such as email, and access shared resources, including printers, in a smooth, efficient, and transparent manner.

• Question 806:

  A technician wants to separate networks on a switch. Which of the following should be configured to allow this?

  A. VLAN

  B. Trunking

  C. Spanning tree

  D. Traffic filtering

  Correct Answer: A

  A VLAN is a group of end stations in a switched network that is logically segmented by function, project team, or application, without regard to the physical locations of the users. VLANs have the same attributes as physical LANs, but you can group end stations even if they are not physically located on the same LAN segment.

• Question 807:

  Spanning-Tree Protocol is used with which of the following network devices?

  A. Router

  B. NIC

  C. Switch

  D. DHCP server

  Correct Answer: C

  Spanning Tree Protocol (STP) is a Layer 2 protocol that runs on bridges and switches. The specification for STP is IEEE 802.1D. The main purpose of STP is to ensure that you do not create loops when you have redundant paths in your network. Loops are deadly to a network.

• Question 808:

  Which of the following properties of DHCP would a technician use to ensure an IP address is not leased out from the active scope?

  A. Reservations

  B. Lease times

  C. Removing IPs from the active leases

  D. Configuring the DNS options

  Correct Answer: A

  Reservations are permanent lease assignments that are used to ensure that a specified client on a subnet can always use the same IP address. You can use DHCP reservations for hosts that require a consistent IP address, but do not need to be statically configured.

• Question 809:

  Which of the following LAN technologies is used to provide a MAXIMUM bandwidth of 1Gbps through singlemode fiber?

  A. 10GBaseLR

  B. 100BaseFX

  C. 100BaseTX

  D. 1000BaseX

  Correct Answer: D

  1000BaseX identifies various Gigabit Ethernet physical layer standards as defined in IEEE802.3z, such as 1000BaseLX, 1000BaseSX, 1000BaseCX and 1000BaseLH. Basically, all standards included in 1000BaseX uses 8B/10B coding scheme with 8 bits of data and 2 bits of error-correction data. Each specification allows various cable (fiber or copper) lengths, and uses different cable media.

• Question 810:

  A customer wants to keep cost to a minimum and has only ordered a single static IP address from the ISP.

  Which of the following must be configured on the router to allow for all the computers to share the same public IP address?

  A. VLANs

  B. PoE

  C. PAT

  D. VPN

  Correct Answer: C

  Port Address Translation (PAT), is an extension to network address translation (NAT) that permits multiple devices on a local area network (LAN) to be mapped to a single public IP address. The goal of PAT is to conserve IP addresses.