Networking and Data Communication Quiz

Which scenario describes a function provided by the transport layer?

• A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network.

• A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.

• A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

• A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.

What does the term 'attenuation' mean in data communication?

• strengthening of a signal by a networking device

• leakage of signals from one cable pair to another

• time for a signal to reach its destination

• loss of signal strength as distance increases

Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.)

• IP

• POP

• DNS

• TCP

• UDP

A company has a file server that shares a folder named Public. The network security policy specifies that the Public folder is assigned Read-Only rights to anyone who can log into the server while the Edit rights are assigned only to the network admin group. Which component is addressed in the AAA network service framework?

• automation

• accounting

• authentication

• authorization

What three requirements are defined by the protocols used in network communications to allow message transmission across a network? (Choose three.)

• message size

• message encoding

• delivery options

• connector specifications

• media selection

What are two characteristics of IP? (Choose two.)

• does not require a dedicated end-to-end connection

• operates independently of the network media

• retransmits packets if errors occur

• re-assembles out of order packets into the correct order at the receiver end

• guarantees delivery of packets

An employee of a large corporation remotely logs into the company using the appropriate username and password. The employee is attending an important video conference with a customer concerning a large sale. It is important for the video quality to be excellent during the meeting. The employee is unaware that after a successful login, the connection to the company ISP failed. The secondary connection, however, activated within seconds. The disruption was not noticed by the employee or other employees. What three network characteristics are described in this scenario? (Choose three.)

• scalability

• integrity

• quality of service

• security

• fault tolerance

What are two common causes of signal degradation when using UTP cabling? (Choose two.)

• improper termination

• low-quality shielding in cable

• installing cables in conduit

• low-quality cable or connectors

• loss of light over long distances

Which subnet would include the address 192.168.1.96 as a usable host address?

• 192.168.1.64/26

• 192.168.1.32/27

• 192.168.1.32/28

• 192.168.1.64/29

Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.)

• Capture traffic on the weekends when most employees are off work.

• Capture traffic during peak utilization times to get a good representation of the different traffic types.

• Only capture traffic in the areas of the network that receive most of the traffic such as the data center.

• Perform the capture on different network segments.

• Only capture WAN traffic because traffic to the web is responsible for the largest amount of traffic on a network.