CompTIA CompTIA Mobility+ N10-005 Questions & Answers

• Question 771:

  Which of the following routing protocols utilizes the DUAL algorithm for determining best path?

  A. EIGRP

  B. RIPv2

  C. OSPF

  D. RIP

  Correct Answer: A

  Diffusing Update Algorithm guarantees loop-free operation and provides a mechanism for fast convergence.

• Question 772:

  Which of the following networking devices can exist at several layers of the OSI model at the same time? (Select TWO).

  A. Switch

  B. Cable

  C. Repeater

  D. Router

  E. Bridge

  F. Hub

  Correct Answer: AD

  A Multilayer Switch and Router work from OSI layer 2, 3 or 4 to IP DSCP (if IP packet) and/or VLAN IEEE 802.1p.

• Question 773:

  In order to limit the number of dynamic addresses of hosts on a network, which of the following can be implemented?

  A. Scope options

  B. Leases

  C. Reservations

  D. DNS suffixes

  Correct Answer: A

• Question 774:

  Which of the following IP address/subnet mask combinations represent a broadcast address? (Select TWO).

  A. 200.200.100.0/28

  B. 200.200.100.32/27

  C. 200.200.100.63/27

  D. 200.200.100.79/27

  E. 200.200.100.95/27

  F. 200.200.100.254/30

  Correct Answer: CE

  A broadcast address is a logical address at which all devices connected to a multiple-access communications network are enabled to receive datagrams. A message sent to a broadcast address is typically received by all network-attached hosts, rather than by a specific host.

  ReferencE. http://www.wikihow.com/Calculate-Network-and-Broadcast-Address

• Question 775:

  A network where all traffic feeds through a centralized gateway uses which of the following topologies?

  A. Peer-to-peer

  B. Ring

  C. Bus

  D. Star

  Correct Answer: D

  A bus topology is a type of network setup where each computer and network device is connected to a single cable or backbone.

• Question 776:

  Which of the following is a Class A IP address?

  A. 10.4.0.1

  B. 169.254.0.1

  C. 192.168.0.1

  D. 254.200.0.1

  Correct Answer: A

  Class A ip address ranges from 10.0.0.0 to 10.255.255.255

• Question 777:

  Which of the following features can BEST be used to facilitate authorized remote access to a network?

  A. VPN concentrator

  B. Proxy server

  C. Content filter

  D. Load balancer

  Correct Answer: A

  The VPN Concentrator is used for Remote Access VPN's. In typical use, a Remote Access VPN allows users to use an encrypted tunnel to securely access a corporate or other network via the Internet.

• Question 778:

  Which of the following is the definition of a DNS server?

  A. Hosts proprietary business applications

  B. Translates FQDN's to IP addresses

  C. Provides network IDS/IPS security

  D. Assigns IP addresses to network devices

  Correct Answer: B

  Domain Name System (DNS) is the name resolution protocol for TCP/IP networks, such as the Internet. Client computers query a DNS server to resolve memorable, alphanumeric DNS names to the IP addresses that computers use to communicate with each other.

• Question 779:

  Which of the following port numbers is used for SNMP?

  A. 61

  B. 151

  C. 161

  D. 1611

  Correct Answer: C

  Simple Network Management Protocol (SNMP) is an "Internet-standard protocol for managing devices on IP networks". Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem racks, UPSes and more. It is used mostly in network management systems to monitor network-attached devices for conditions that warrant administrative attention.

• Question 780:

  Which of the following protocols resolves IP addresses to MAC addresses?

  A. DNS

  B. ARP

  C. RARP

  D. NTP

  Correct Answer: B

  ARP is used to convert an IP address to a physical address such as an Ethernet address. ARP has been implemented with many combinations of network and data link layer technologies, such as IPv4, Chaosnet, DECnet and Xerox PARC Universal Packet (PUP) using IEEE 802 standards, FDDI, X.25, Frame Relay and Asynchronous Transfer Mode (ATM). IPv4 over IEEE 802.3 and IEEE 802.11 is the most common case.