Comptia A+ Ch 16 Networking

Front 1

Which of the following is NOT the cause if you cannot connect to a wireless device?

Out of range

Incorrect IP address

Interference from microwaves or cordless phones

Incorrect security settings

Back 1

Incorrect IP address

Front 2

What tool is used to terminate wires on a 110 block?

Back 2

Punch-down tool

Front 3

Which of the devices when present affect 802.11 2.4Hz WLAN preformances

Cell Phones

Cordless Phones

Radios

Microwave ovens

Back 3

Cordless phones and Microwave ovens

Front 4

What port is used by TELNET?

Back 4

23

Front 5

What command can be used to set account options (password age, length, and so on)?

Back 5

NET ACCOUNTS

Front 6

Which of the following is a difference between a domain and workgroup?

A workgroup has 20 or more computers.

A domain is controlled by a server.

a workgroup has a domain controller.

a domain is meant for 10 computers or less.

Back 6

A domain is controlled by a server

Front 7

A user was able to access his office computer yesterday, but today after a router was replaced, the user is now seeing another users login screen. Which of the following should you check to resolve the issue?

DMZ

DNS

Port forwarding

Closed ports

Back 7

Port Forwarding

Front 8

Which of the following IP Addresses is within the Class A IP range?

180.54.23.1

18.54.23.1

192.168.1.1

203.25.101.1

Back 8

18.54.23.1

Hint 8

Class A: 0-126

Class B: 128-191

Class C: 192-223

Front 9

Which of the flollowing characteristics and port numbers are associated with SMTP

Receives inbound e-mail, uses port 110

Sends outbound e-mail, uses port 110

Receives inbound e-mail, uses port 25

Sends outbound e-mail, uses port 25

Back 9

Sends outbound e-mail, uses port 25

Hint 9

Simple Mail Transfer Protocol (SMTP) uses port 25

POP3 protocol uses port 110

Front 10

Which utility can be used to reset a computer's network adapter?

Back 10

Windows Network Diagnostics

Front 11

Your boss wants you to display NetBIOS over TCP/IP information on a remote laptop. What command should you use?

Back 11

NBTSTAT

Hint 11

NetBIOS over TCP/IP statistics

Front 12

Which wireless technology is mos often used to connect peripherals to a mobile device?

Back 12

Bluetooth

Front 13

Which of the following ports is an alternative to the standard HTTP port?

443

8080

21

180

Back 13

8080

Front 14

Which two connectors are used to connect a DSL modem to a network card and to a phone line?

RJ-8

RJ-11

RJ-45

RJ-60

Back 14

RJ-11

RJ-45

Front 15

What command can display the DNS server a client is using?

Back 15

nslookup

Front 16

What tool could be used to preform traffic analysis?

Back 16

Protocol analyzer

Front 17

You are required to install network cabling that supports at least 100 Mbps. Which one of the following cable types fits this description? (Select Two)

Cat 3

Cat 4

Cat 5

Cat 6

Back 17

Cat 5

Cat 6

Front 18

Which of the following are encrypted protocols? (Select two)

SSH

TELNET

HTTPS

POP3

FTP

Back 18

SSH

HTTPS

Front 19

You need to map a network drive to a share on a server. Which command should you use?

Back 19

NET USE

Front 20

Which protocol is used between e-mail servers when sending and receiving e-mail?

Back 20

SMTP

Front 21

Which of the following operates in the 2.4GHz frequency with a top rate of 54Mbps?

802.11a

802.11b

802.11g

802.11n

Back 21

802.11g

Front 22

Which of the following commands displays the route to a remote host?

NETSTAT

NELOOKUP

TRACERT

ECHOOFF

Back 22

TRACERT

Front 23

What command obtains a new IP address?

Back 23

ipconfig/renew

Front 24

Which one of the following protocols uses port 143?

TELNET

POP3

IMAP

HTTPS

Back 24

IMAP

Front 25

An old 10Mbps UTP Ethernet network is being upgraded to a Gigabit Ethernet. Which of the following cable types is the minimum recommended for the new cable runs needed?

Back 25

CAT5e

Front 26

What step will NOT minimize electrical interference on a wired LAN?

Use CAT6 cabling.

Install cables in separate conduits.

Keep cable runs away from electrical moters.

Use shielded cable.

Back 26

Use CAT6 cabling.

Front 27

Which of the following celluler technologies offers the best potential performance?

HSPR

HSPR+

LTE

EVDO

Back 27

LTE

Front 28

Which one of he following devices is an integral part of WAN?

Router

Hub

Switch

Repeater

Back 28

Router

Front 29

You are attemption to connect a wireless laptop to an IEEE 802.11a wireless access point. You configure the laptop to connect to the SSID, and the laptop's wireless client scans all 11 wireless channels; however, the laptop still cannot find the wireless network. What is the most likely cause of the problem?

Back 29

The wireless client is using the wrong wireless adapter.

Front 30

What tool is used to test the voltage of a copper cable?

Back 30

Multimeter

Front 31

You observe poor network performance on a computer on a computer when trasferring large amounts of data. After analyzing the system, you see that the network adapter has manually configured settings of 1,000 Mbps and full duplex. However, the Ethernet switch shows auto-necotiated 1,000 Mbps and half duplex. What should you do to correct the issue?

Back 31

Configure auto-negotiation on the computer.

Front 32

Which of the following is a wireless techonology that operates only in the 5.0 GHz band?

802.11a, b, g, or n

Back 32

802.11a

Front 33

You suspect that a compters browser has been hijacked. What should you look for?

Back 33

A proxy server has been enabled

Front 34

Which test checks the send and receive on a local modem?

Back 34

Local digital lookback

Front 35

You need to find out the MAC address of a laptop so that you can tell the network adminstrator which address to filter on the wireless acceess point. What command is best for this scenario?

Back 35

IPCONFIG

Front 36

________ is the decrease in signal strength along the length of a network wire.

Back 36

Atteuation

Front 37

Whats the range of Class B IP addresses?

Back 37

128.0.0.1 - 191.225.225.225

Front 38

One of your customers tells you that they cannot receive e-mail. Which of the following protocols should you check?

NNTP, HTTP, SMTP, or POP3

Back 38

POP3

Front 39

Which line of sight technology is most widely used for wireless printing?

Back 39

Infrared

Front 40

A user complains that they cannot connect to the Internet. Upon analysing the computer you realize that the system is useing the IP adress 169.254.23.25. What does this mostlikely mean?

Back 40

The computer has self-assigned an APIPA address>

Front 41

Accelerometers and gyroscopes are used to manage what functionin a mobile device?

Back 41

Screen orentation

Front 42

Which cable type uses the BNC connector.

Back 42

Coaxial

Hint 42

Cat 5e: RJ-45

Fiber: SC and ST

BNC: Coaxial

Front 43

What is an ESD wrist strap designed to prevent?

Back 43

Static discharge damage to the equipment

Front 44

A computer that was previously working fine no longer has network connectivity. You investigate and it appears that all connectors and settings are properly configured. What tool should you use to troubleshoot further?

Back 44

Cable Tester

Front 45

Where do you connect a loopback plug to preform a loopback test?

Back 45

To an I/O port

Front 46

Which wireless technology is used to create a direct connection between and computer and a wireless headset?

Back 46

Bluetooth

Front 47

you want to verify that another computer on the network is alive. What is the best tool to use?

Back 47

PING

Front 48

Which networking service assigns IP Adresses automaticelly if they are requested by a client computer?

Back 48

Dynamic host configureation protocol

Front 49

Which of the following is the ost effective security feature to protect sensitive data on a mobile device?

Locatior app, Remote backup, Passcode lock, Remote wipe

Back 49

Remote wipe

Front 50

What does the AP broadcast so that clients can identify the network?

Back 50

SSID

Front 51

Which of the following network devices sends data to all devices connected to it.

Back 51

Hub

Front 52

What service is in charge of converting a hostname to an IP address

Back 52

DNS

Front 53

Which WAN etchnology uses fixed-length packets to transmit data, voice, video, and frame relay traffic?

Back 53

ATM (Asynchronous Transfer Mode)

Front 54

Which of teh following representes the number of IP addresses possible with IPv6

2^32, 2^16, 2^128, 2^64

Back 54

2^128 (IPv6 adresses are 128-bits long)

Front 55

Which of the following is NOT considered Wi-Fi?

802.11a, b, g, or 802.16

Back 55

802.16 (WiMAX)

Front 56

Which of the follwoing can NOT be monitored in the BIOS?

Fan speeds, Network card traffic rate, Intrusion detection notifications, or Temperature

Back 56

Network card traffic rate

Front 57

Using the multimeter, what ohm reading will you get for a good fuse rated at 2 amps?

Back 57

0

Front 58

What is the max distance that bluetooth class 2 devices can transmit information ?

Back 58

10 Meters (33 ft)

Hint 58

Class 1: 100 meters (328 feet)

Class 3: 5 Meters (16 feet)

Front 59

At what distance will a WLAN station receive the best preformance?

Back 59

20 Meters

Front 60

How many ohms dose a multimeter read for a closed circuit, such as a good fuse or good wire?

Back 60

0

Front 61

Wireless ________ enables Windows 7, Windows Vista, and Windows XP computers to automatically connect to available wireless networks.

Back 61

Zero Configuration

Front 62

A smaller branch office is opening in a city 20 miles away from your corporate headquarters. you are in charge of setting up its SOHO network, which will require Internet access and VPN connectivity to the main office. The computer will be running a few different vsersions of windows. What consideration should you take into account first.

Back 62

Compatibility requirements

Front 63

Which of the following standards requires MIMO?

802.3, 802.11n, 802.11g, 802.3n

Back 63

802.11n

Hint 63

MIMO; Multiple-input multiple-output

Front 64

which one of the folowing types of cables makes use of an ST connector?

Fiber, Cat 5, Coaxial, CAT 6

Back 64

Fiber

Front 65

Port 3389 is used by which protocol?

Back 65

RDP or Remote Desktop Protocol

Front 66

Which of the following statements is correct for IPv6?

IPV6 addresses are based off the MAC address

IPv6 and IPv4 can co-exist on the same network

IPv6 supports addresses up to 32 bits in length

IPv6 must run on a separate network than IPv4

Back 66

IPv6 and IPv4 can co-exist on the same network

Front 67

Which one of the following wireless technologies can operate at either 2.4 or 5 GHz?

802.11a, b, g, or n

Back 67

802.11n

Hint 67

802.11a: 5GHz only

b and g: 2.4 GHz only

Front 68

Which following ports chould be forwarded on a firewall to make SSH management accessible from the Internet?

Back 68

22

Front 69

Which switch used to indicate PING should continue to ping host without stoping until you issue Ctrl+C?

Back 69

/T

Front 70

A network of computers inside a small office that communicate with each other would best be described as what?

Back 70

LAN

Front 71

Which of the following are items or techologies that are common components of LAN? (all that apply)

Dial-up

Ethernet

DSL

Switch

Cloud

Back 71

Eathernet

Switch

Front 72

The command IPCONFIG /RENEW renews and IP address for the host from what type of server?

Back 72

DHCP

Front 73

Which of the following network classes is being used if you see the default subnet mask of 255.0.0.0?

A, B, C, D

Back 73

A

Front 74

What command deletes all name resolution information from the client's DNS resolver cache?

Back 74

ipconfig/flushdns

Front 75

What tool is used to attach a connector to a UTP cable?

Back 75

Crimper

Front 76

Which command displays the ip address of the host and other configuration information?

Back 76

ipconfig

Front 77

Which of the following is a valid IPv6 address?

FE08::212B::74D1/122

FE0G:881D::0001/64

ABC0::0011/130
80457522::3489/64

Back 77

80457522::3489/64

Front 78

Which types of DSL have equal upload and download rates?

Back 78

SDSL

Front 79

Which type of interness connection suffers from the highest amount of latency

Back 79

Satellite

Front 80

What is the range of APIPA IP addresses?

Back 80

169.254.x.x

Hint 80

Automatic Private IP Addressing

Front 81

Your client is having probles with a DSL installation after adding a fax machine. Which of the following devices should be connected between the faz machine and the telephone port to resolve problems?

Protocol analyzer, Mirofilter, Mini-PCIe card, Print Spooler

Back 81

Microfilter

Front 82

One segment of a Gigabit Ethernet network has a unacceptably high error rate due to EMI. Which of the following cable types should be use to prevent interference with out replaceing other compnents?

Back 82

STP (Shelded twisted-pair)