Chapter 5

Question 1

Which layer of the OSI model covers the cabling and electrical signaling?

Physical
Data-link
Network
Transport

Answer 1

Physical

Question 2

What layer of the OSI model are the Media Access Control addresses part of?

Physical
Data-link
Network
Transport

Answer 2

Data Link

Question 3

What address is assigned to a computer that fails to locate a DHCP server?
  NAT 
  MAC 
  APIPA 
  CIDR

Answer 3

APIPA

Question 4

What command is used to test network connectivity between two hosts?
  Ipconfig 
  Ping 
  Netsh 
  Nslookup

Answer 4

Ping

Question 5

IPv6 Addresses are expressed in:
  hexadecimal 
  decimal 
  octal 
  binary

Answer 5

hexadecimal

Question 6

What command-line tool can be used to display and configure a network adapter?
  ipconfig 
  netstat 
  nslookup 
  ping

Answer 6

ipconfig

Question 7

What command-line command can be used to explore and diagnose DNS server access and functionality?
  ipconfig 
  netstat 
  tracert 
  nslookup

Answer 7

nslookup

Question 8

IPv4 network addresses are composed of two parts.  Select the two parts from the list below.
  Network identifier 
  Host identifier 
  Route identifier 
  MAC identifier

Answer 8

Network identifier

Host identifier

Question 9

CIDR

Answer 9

used to avoid assigning entire addresses of a particular class to networks that didn’t have that many hosts

Question 10

A __________ is a device that connects one network to another.

Answer 10

Router

Question 11

layer of the OSI model that are part of the Media Access Control addresses

Answer 11

Data-link

Question 12

Protocols

Answer 12

languages that all computer understand

Question 13

OSI Layers

Answer 13

Physical, Data-link, Network, Transport, Session, Presentation, Application.

Question 14

UTP

Answer 14

Unshielded Twisted Pair: Ethernet cable used for networking computers.

Question 15

the header and footer surrounding data packets

Answer 15

frame

Question 16

data encapsulation

Answer 16

the process of applying frames to data packets

Question 17

Media Access Control (MAC) address

Answer 17

The hardcoded address on each network interface adapter on a computer.

Question 18

TCP

Answer 18

Transmission Control Protocol

Question 19

IP

Answer 19

Internet protocol

Question 20

TCP/IP

Answer 20

The protocols windows use by default at the network and transport layers.

Question 21

A device that connects one network to another.

Answer 21

Router

Question 22

IP Address

Answer 22

An address that identifies a computer in a network, consists of a network and host indentifier.

Question 23

Subnet Mask

Answer 23

The division between network and host identifier.

Question 24

Link Local Multicast Name Resolution (LLMNR)

Answer 24

For computer with link-local addresses, which might not have access to a DNS server - an IPV6 name resolution option.

Question 25

stateless address autoconfiguration

Answer 25

enables computers to configure their own addresses after transmitting router solicitation multicasts to the routers on the network and receiving router advertisement messages in return

Question 26

datagram

Answer 26

transport layer data, encapsulated within an IP packet

Question 27

connection-oriented protocol

Answer 27

a protocol in which two communicating systems establish a connection before they transmit any data

Question 28

connectionless protocol

Answer 28

does not require the establishment of a connection, nor does it perform error detection or correction.

Question 29

ports

Answer 29

codes that identify specific applications running on the system

Question 30

socket

Answer 30

the combination of an IP address and a port number

Question 31

firewall

Answer 31

a software routine that acts as a virtual barrier between a computer and the network to which it is attached.

Question 32

NAT

Answer 32

a feature built into many routers that takes the packets destined for the Internet that are generated by the computers on a private network, substitutes a registered address for the computer's private address, and then forwards the packets to the Internet distination.

Question 33

8P8C connectors

Answer 33

the connectors on the end of RJ45 cables

Question 34

packet switching networks

Answer 34

Local area networks are sometimes referred to as this.