Deck 21: Local Area Networking

Question 1

Under the class system, what was the default subnet mask of Class C addresses?

A)255.0.0.0
B)255.255.0.0
C)255.255.255.0
D)255.255.255.255

Answer 1

C

Question 2

How many bits are in an IPv4 address?

A)32
B)64
C)16
D)128

Answer 2

A

Question 3

What identifies a machine on a network?

A)Default gateway
B)DNS
C)IP address
D)Subnet mask

Answer 3

C

Question 4

What service automatically assigns IP addresses?

A)DNS
B)DHCP
C)HTTP
D)TCP/IP

Question 5

What device connects a LAN's switch to the next network?

A)Router
B)Transceiver
C)MAUS
D)Gateway

Question 6

What is the address of the "LAN" side of a router called?

A)Static IP address
B)IPv4 address
C)Default gateway
D)Dynamic address

Question 7

Under the class system, how many host IDs were available in a Class B network?

A)254 (2⁸ - 2)
B)65534 (2¹⁶ - 2)
C)1024 (2¹⁰)
D)127 (2⁷ - 1)

Question 8

How many host IDs does a /20 network support?

A)1,048,574 (2²⁰ - 2)
B)65,536 (2¹⁶)
C)4094 (2¹² - 2)
D)64 (2⁶)

Question 9

Which utility shows the route that a packet takes to get to its destination?

A)IPCONFIG
B)NSLOOKUP
C)Ping
D)TRACERT

Question 10

What command displays a computer's network settings?

A)ping
B)tracert
C)ipconfig
D)net

Question 11

What is the connectionless, unreliable data transfer protocol within the TCP/IP suite?

A)TCP
B)HTTP
C)UDP
D)HTML

Question 12

What is the Linux/Mac OS equivalent of ipconfig?

A)ipconfig
B)ifconfig
C)netconfig
D)config

Question 13

What is the Linux/Mac OS equivalent of tracert?

A)ipconfig
B)traceroute
C)tracert
D)telnet

Question 14

IPv4 addresses in the range 169.254.0.1 to 169.254.255.254 represent which feature?

A)Domain Name Service
B)Dynamic Host Control Protocol
C)Automatic Private IP Addressing
D)Hyper Text Transfer Protocol

Question 15

How many bits are in an IP/v6 address?

A)32
B)64
C)48
D)128

Question 16

What should be entered at a command prompt to view all of a user's TCP/IP settings?

A)ipconfig/renew
B)ipconfig
C)ipconfig/all
D)ipconfig/release

Question 17

What command verifies communication with a remote system by sending packets to it and receiving them back?

A)ping
B)tracert
C)ipconfig
D)net

Question 18

Under the class system, what was the default subnet mask for Class A addresses?

A)255.0.0.0
B)255.255.0.0
C)255.255.255.0
D)255.255.255.255

Question 19

How many host nodes are supported on a single class C network?

A)65
B)192
C)129
D)254

Question 20

What service translates easily remembered names such as google.com to IP addresses?

A)DHCP
B)TCP/IP
C)HTTP
D)DNS

Question 21

The setting" Obtain an IP address automatically" configures your computer to receive an IP address automatically from a(n) _______________ server on the network.

Question 22

After entering IPCONFIG at a command prompt, you notice you are using an IP address in the 169.254.0.1 to 169.254.255.254 address range.What is most likely explanation for being assigned one of these addresses?

A)The DHCP server is down.
B)IPv6 addresses have run out.
C)The DNS server is down.
D)IPv4 addresses have run out.

Question 23

Part of an IP address identifies the network ID, and another part identifies the _______________ ID on the network.

Question 24

What is required to use a domain on a network of Windows computers?

A)A computer running a version of Windows Server
B)At least two routers
C)A password management system
D)A domain name server

Question 25

With CIDR, network techs refer to the subnet mask by the number of _______________ it contains.

Question 26

Originally, DNS names all ended with one of seven domain name qualifiers, called _______________.

Question 27

The IPv6 address FE80::12C7:388B:CF:7114 represents what type of address?

A)Static
B)Link-local
C)Global
D)Temporary

Question 28

In the IPv6 address 2001::3210:800:200C : CF:1234, how many groups of four zeros does the "::" notation represent?

A)2
B)4
C)8
D)1

Question 29

The address of the port connected to your LAN, also called a(n) _______________ sends data outside of a LAN.

Question 30

Which component emits a sound when it receives an electrical signal along the wire at a certain frequency?

A)Tone generator
B)Time-domain reflectometer
C)Multimeter
D)Tone probe

Question 31

Under the class system, a Class B network supported up to _______________ host IDs.

Question 32

A Workgroup shares folders over the network.What does a Homegroup share?

A)Passwords
B)Users
C)Libraries
D)Files

Question 33

In a TCP/IP network, the _______________ is used to block out the network portion of an IP address.

Question 34

What command would you use to map a share to a drive letter on a computer?

A)net use
B)net view
C)net unc
D)net share

Question 35

CIDR stands for _______________.

Question 36

The Internet uses the _______________ protocol.

Question 37

Which device is used to perform a loopback test on a NIC?

A)Crossover cable
B)Link light
C)Ephemeral port tester
D)Loopback plug

Question 38

What instrument measures the impedance of a cable?

A)Oscilloscope
B)Toner
C)Time-domain reflectometer
D)Voltmeter

Question 39

Machines that connect LANs are called _______________.

Question 40

What command allows you to quickly view a network?

A)net
B)tracert
C)ipconfig
D)ping

Question 41

When you set the IP address manually, the IP address is not subject to change and is called a(n) _______________.

Question 42

In the IPv6 address C1A8::17D3:AB66:8112, the :: replaces _______________ in full format

Question 43

The IP address 2001:0db8:85a3:0000:0000:8a2e:0370:7334 is an example of a(n) _______________ address.

Question 44

A powerful command-line program that enables you to determine the information on a DNS server is _______________.

Question 45

The Windows _______________ utility shows the route that a packet takes to get to its destination.

Question 46

The vast majority of network disconnection problems occur at the _______________.

Question 47

The Control Panel box for setting printer sharing is called _______________ in Windows 7 and later.

Question 48

Windows displays a(n) _______________ over the network icon in the notification area to indicate that you're not connected.

Question 49

NIC LEDs, also known as _______________, provides clues about what's happening with your network connection.

Question 50

The most famous TCP/IP service is called _______________, the language of the World Wide Web.

Question 51

The _______________ command lists a computer's network connection settings.

Question 52

To have network connectivity, you need a connected NIC, a properly _______________ TCP/IP, and a(n) _______________.

Question 53

Network techs use a device called a(n) _______________ for help in tracing cables.

Question 54

An IPv6 address that begins FE80:: is a(n) _______________address.

Question 55

When activating an NIC, the Windows operating system makes a(n) _______________ value for the last _______________ bits of an IPv6 address.

Question 56

The _______________ utility verifies that you can communicate with a remote system.

Question 57

The _______________ Center in Windows 7 and later can be used to establish network connectivity.

Question 58

A(n) _______________ sends data out of the NIC and checks to see if it comes back.

Question 59

_______________ permission only apply to network sharing, whereas _______________ permissions affect both network and local access to shared resources.

Question 60

::1 is the IPv6 _______________.

Question 61

What four entries should be entered for a computer to connect to a network?

Question 62

Describe the two methods for generating the lower 64 bits of an IPv6 address.

Question 63

Describe the Wake-on-LAN feature.

Question 64

What does the TCP/IP service SSH allow you to do?

Question 65

What is the difference between full-duplex and half-duplex NICs?

Question 66

What does DNS stand for and what does it do?

Question 67

Describe the process by which a computer obtains an IPv4 DHCP address.

Question 68

Explain the difference between TCP and UDP.

Question 69

List four useful Windows TCP/IP testing tools.

Question 70

Suppose a network is characterized as /20.What does this mean? How many host IDs can the network support?

Question 71

What is the purpose of the tracert utility?

Question 72

Describe a router.

Question 73

You install a state of the art NIC, but Windows doesn't automatically install the driver.What do you do?

Question 74

What is an IP conflict?

Question 75

What is QoS?

Question 76

What is the function of the nslookup command?

Question 77

The ipconfig command shows an IP address of 169.254.0.27.This is indicative of the failure of what network element or service?

Question 78

Describe the role of link lights on a NIC.

Question 79

What organization is responsible for managing and adding Internet domain names and addresses?

Question 80

What is the binary equivalent of the number 255?