NetAcad 11 Module 5-8 Exam

What is the purpose of protocols in data communications

providing the rules required for a specific type of communication to occur

Which 3 layers of the OSI model map to the application layer of the TCP/IP model?

. Session
. Presentation
. Application

Which type of network model describes the functions that must be completed at a particular layer, but does not specify exactly how each protocol should work ?

reference model

The institute of electrical engineers is responsible for standards in which two areas

.Wireless LANs
. Ethernet media access control

Which statement is true about the MAC address?

The first three bytes are used by the vendor assigned OUI

What process is used to place one message inside another message for transfer from the source to the destination ?

Encapsulation

Which logical address is used for delivery of data to a remote network?

destination IP address

What are the three layers of a hierarchical network design model ?

. Core
. Distribution
. Access

What addressing information is recorded by a switch to build its MAC address table?

the source Layer 2 address of incoming frames

What will Cisco LAN switch so if it receives an incoming frame and the destination MAC address is not listed in the MAC address table

Forward the frame out all ports except the port where the frame is received

Which two functions are primary functions of a router

packet forwarding
path selection

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

The computer has an invalid default gateway address.

A router receives an incoming packet and determines that the packet should be forwarded to a remote destination host. What will the router do to forward the packet

It encapsulates the frame with the destination MAC address by using the MAC address of the interface of the next hop router

A router is receiving a stream of incoming packets and does not contain a route to the remote destination network. What configuration can a network administrator issue in order to successfully forward the incoming packets

Add a default route

Which two parts are components of an IPv4 address

network portion and host portion

When a host sends a packet, how does it determine if the destination of the packet is on the same local network or on a remote network

It uses the subnet mask to compare the source and destination IP address

What is the default subnet mask for an IP address of 198.133.219.4

255.255.255.0

Which the IP address are private

. 192.168.5.5
. 172.16.4.4
. 10.1.1.1

What type of message is sent to a specific group of hosts

multicast

Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)

network
transport

What action does ARP process take when a host needs to build a frame, but the ARP cache does not contain an address mapping

The ARP process sends out an ARP request to the Ethernet broadcast address to discover the MAC address of the destination device

A router receives an incoming packet should be forward to a remote destination host. What will the router do to forward the packet ?

It encapsulates the frame with the destination MAC address to the interface of the next hop router

Which IP address is a unicast address if a default subnet mask is used

192.16.43.67