ITS 170 Final Exam

IPv4 address is limited resource and depleting. To overcome this problem, shot-term solution was introduced. What are they?

DHCP Non routable Address NAT/NAPT

ISDN stands for

Integrated services digital network

Subnetting offers all of the following benefits except

It helps DNS operations

One of the popular interior routing protocols is

OSPF

OSPF

Open Shortest Path First

The basic unit of Internet routing is

a router

In dynamic allocation, IP addresses are assigned by DHCP

automatically and for a short period ,based on a first come, first serve basis from a pool of addresses

DHCP

enables IP address reuse

The pull model of communication used on the web means that

end user must choose to pull down content on web pages

Subnetting is most useful for

network administatiors

You have created a new application protocol for online games. To use this protocol, users will need to install

only the new application protocol

Wide area are defined by their ability to

provide data communication services to a large number of users

Compared to routers, switches typically cannot

select the correct path from multiple available paths

Routing is the process of

selecting information paths from the source network to the destination network

The number of subnets in the organization is best determined by

the structure of the organization

A unique feature of the application layer compared to the other layers of the TCP/IP stack is that

there is a separate protocol for each application

DNS stands for

Domain Name System

Dense Wave Division Multiplexing(DWDM) is one of multiplexing technique which uses time slot

False- it uses dense wave

MPLS stands for multi-process label switching

False-Multi-protocol label switching

When a client wishes to translate the hostname www.example.com, it sends a translation request to

The DNS server

A URL is

a character string describing the location and access method of a networked resource

ATM specifies data rates in the range of

1.544Mbps - 622.08 Mbps

All of the following are RFC 1918(Non-Routable) address blocks except

118.7.8.0/24

When the subnet mask 255.255.0.0 is applied to the IP address 172.16.151.45, the result is

172.16.0.0

An organization has 64 subnets. The subnet part of the IP addresses in the organization must have a least

6 bits

WAN links are relatively expensive and it is suggested to use those link more efficiently. Link utilization can be improved by.

Aggregating the traffics

Since WAN support large number of users, multiplexing technologies such as TDM and FDM were used to overcome the limitation of point to point connection. What does FDM and TDM stand for

FDM- Frequency Division Multiplexing TDM- Time Division Multiplexing

Class A IP address has 8 host bits

False 8 Network 24 Host

The application layer is responsible for segmenting user data?

False-

Non-routable addresses are useful because they enable automatic IP address assignment

False- DHCP

Address Resolution Protocol(ARP) is used to acquire IP address from DHCP server

False- It acquires MAC address

Broadcast is the easiest data transfer method and mainly used in WAN technology

False- It uses LAN

SMTP stands for

Simple Mail Transfer Protocol

The limitations of point to point technologies include all of the following except

The split the physical medium into multiple time slots

ATM stands for Asynchronous Transfer Mode

True

An autonomous system is a collection of routers under one administrative entity

True

DHCP stands for Dynamic Host Configuration Protocols

True

HTTP stands for HyperText Transfer Protocol

True

Routing protocols are the mechanisms used by routers on the internet to maintain routing tables

True

Simple Main Tranfer Protocol(SMTP) is one of the application protocols to transfer email between mail servers?

True

Subnetting is a way of breaking down large blocks of IP addresses into smaller address blocks

True

The subnet mask of class B IP address is 255.255.0.0

True