Deck 3: Networking

Question 1

As a technician of ABCD.com, you are asked to configure a PC that needs to be connected to the Internet. Which two things you will check for FIRST?

A)Host name of the computer and the IP address of the default gateway
B)IP address of the DNS server and IP address of the default gateway
C)IP address of the e-mail server and IP address of the DHCP server
D)Host name of the computer and IP address of the e-mail server

Answer 1

IP address of the DNS server and IP address of the default gateway

Question 2

Which of the following network types is created by a Bluetooth connection?

A)LAN
B)PAN
C)WAN
D)MAN

Answer 2

PAN

Question 3

Which of the following specific network devices is required for communication over POTS?

A)Ethernet NIC
B)WAP
C)Modem
D)PSTN

Answer 3

Modem

Question 4

As a part of a troubleshooting process, John wants to check the table that maintains the TCP/IP to MAC address translation on his computer. Which utility should he use?

A)arp
B)ping
C)nbtstat
D)netstat

Question 5

Which of the following protocols is used to send messages to the e-mail server for relaying?

A)Simple Mail Transfer Protocol (SMTP)
B)Post Office Protocol, version 3 (POP3)
C)Internet Control Message Protocol (ICMP)
D)Internet Message Access Protocol, version 4 (IMAP4)

Question 6

What should you do if you do not want your router to broadcast the name out to anyone who wants to connect to it?

A)Enable MAC filtering
B)Disable MAC filtering
C)Power off your router
D)Disable SSID broadcast

Question 7

Billy is installing a wireless access point at his home and he wants to encrypt and secure the data as strongly as possible. Which technology should he use?

A)WEP
B)WPA
C)TLS
D)WPA2

Question 8

The cables that lead from patch panels (in the wall) to computers and are placed above ceiling tiles are called:

A)STP cables.
B)Coaxial cables.
C)Plenum cables.

Question 9

George has just attached a computer with an NIC to a network. He is not sure if the NIC has physical connectivity with the network. Which of the following ensures there is successful physical connectivity between the NIC and the network?

A)Being able to ping the local host successfully
B)Glowing NIC LEDs.
C)Device Manager shows that the NIC is OK.
D)Able to boot the PC successfully.

Question 10

What is the default subnet mask for the IP address 192.168.10.10?

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

Question 11

A large company has three offices located in different parts of the same city, and have created a network connecting the three offices. What network type best defines this setup?

A)LAN
B)PAN
C)WAN
D)MAN

Question 12

Which 802.11x standard only operates at 5 GHz?

A)802.11a
B)802.11b
C)802.11g
D)802.11n

Question 13

A user wants to be able to access a computer in his home LAN from anywhere in the world using RDP. The user has a SOHO router setup in his home. What service built-into the SOHO router will be most helpful in accomplishing this?

A)Port Forwarding
B)NAT
C)Port Triggering
D)WPS

Question 14

Which of the following protocols best provides network printers with the ability to notify the administrator of an issue?

A)LDAP
B)SNMP
C)SMB
D)SSH

Question 15

Internet Protocol version 6 (IPv6) has an address size of _________ bits and uses _______ values to indicate addresses

A)32; numeral
B)64; numeral
C)128; hexadecimal
D)128; numeral

Question 16

A network administrator wants to install fiber optic cable that will work at the fastest speed possible over longer distances. What type of fiber should the administrator purchase?

A)Full-Duplex
B)Multimode
C)Single-Mode
D)Half-Duplex

Question 17

Nick bought a new Ethernet NIC and installed it on his new PC. He observes that the link lights on the NIC are flashing orange. What do flashing orange link lights usually indicate?

A)There are collisions on the network.
B)Data is being transmitted to the computer.
C)The network cable is faulty.
D)The network is down.

Question 18

To complete the installation of an IDF or MDF, which of the following cable tools are you most likely to need?

A)Crimper
B)Stripper
C)Punch-Down
D)Cable Tester

Question 19

Which of the following best describes communication on an old-fashioned walkie-talkie?

A)Full-Duplex
B)Half-Duplex
C)Duplex
D)Latency

Question 20

The proper command line syntax for mapping a network share to a local drive letter in Windows is:

A)NET USE z: \\Server\ShareName
B)NET SHARE z: \\Server\ShareName
C)NET USE z: //Server/ShareName
D)NET SHARE z: //Server/ShareName

Question 21

Which of the following offers a secure alternative to FTP?

A)Telnet
B)TFTP
C)SFTP
D)HTTPS

Question 22

What differentiates a crossover from a straight-through twisted-pair patch cable?

A)It is wired for 568B on both ends.
B)It has an RJ45 connector on one end, and an RJ11 connector on the other.
C)It is wired for 568A on one end and 568B on the other end.
D)It has an RJ45 connector on both ends.

Question 23

Which of the following cable types would be used to wire a LAN network, above drop ceilings, in an area susceptible to EMI?

A)Plenum-rated STP
B)Plenum-rated UTP
C)Coaxial
D)Shielded Twisted Pair

Question 24

Which of the following network devices moves frames of data between two nodes through the use of IP Addresses?

A)Hub
B)Switch
C)Bridge
D)Router

Question 25

Which of the following network topologies provides the most redundancy?

A)Star
B)Ring
C)Mesh
D)Bus

Question 26

Which of the following is not a correctly written IPv6 address?

A)2004:7230:0000:0006::1FF0
B)2004:7230:0000:0006:0000:0000:0000:1FF0
C)2004:7230::0006::1FF0
D)2004:7230::6:0000:0000:0000:1FF0

Question 27

A user wishes to remotely control a system using the most secure method available. Which of the following ports will she likely use?

A)25
B)22
C)23
D)80

Question 28

Which of the following is the default Subnet Mask for the IP Address 133.142.7.82?

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

Question 29

Which of the following connections is used with Fiber Optic Cable?

A)RJ11
B)BNC
C)ST
D)RG-6

Question 30

Which of the following is an APIPA IP-address?

A)192.168.0.1
B)169.254.8.24
C)10.0.0.1
D)127.0.0.1

Question 31

You will be building a new Internet backbone for a new office. You prefer to use a cable that transmits data via light. Which type of cable do you choose?

A)UTP
B)Coaxial
C)Fiber
D)STP

Question 32

For storage reasons you need to transfer data to your company's FTP server. While configuring the FTP client application on your computer, what port number do you use?

A)25
B)110
C)80
D)21

Question 33

HTTPS is used for more secure web transactions and uses port number:

A)23
B)21
C)443
D)110

Question 34

As a network administrator of APR.com, which of following is the most important preventive measure that you should take on a regular basis to secure and protect your PC?

A)Disable the use of cookies.
B)Disable all unused features of the web browser.
C)Run a virus scan of the hard disk drives.
D)Enable the Windows firewall.

Question 35

A PC has been configured with a static IP address of 192.168.1.122. Bill tries to run the ping 127.0.0.1 command on this PC, but he does not receive any reply for this command. What should he infer from this?

A)The network interface card (NIC) is faulty.
B)The network cable is faulty.
C)The technician should run the ping 192.168.1.122 command.
D)The DNS server is offline.

Question 36

You are the technician at ABCD.com. You want to ping the loopback address on a PC that has been configured with the static IP address of 192.168.1.122. What command would you use to achieve this?

A)PING 0.0.0.0
B)PING 127.0.0.1
C)PING 192.168.1.122
D)PING 255.255.255.255

Question 37

The UpwardPro.com network uses an IP proxy that provides network address translation. Jennifer implements IPSec for all the Internet-bound traffic but observes that she is still not able to access the Internet. What is the most likely cause of this issue?

A)Network address translation (NAT) does not work with IPSec.
B)The IP proxy is blocking egress and ingress traffic on port 80.
C)The IP proxy is blocking egress and ingress traffic on port 1293.
D)The IP proxy is blocking egress and ingress traffic on port 8080.

Question 38

You ping the loopback address, but do not receive any response. What is the most likely source of this problem?

A)DSL router is down.
B)DNS server is offline.
C)Network card is being throttled.
D)TCP/IP protocol is not functioning.

Question 39

A company's mail server is running out of space. The decision is made to make the mail clients download the mail they receive into their own local inbox to get it off of the server. What protocol should the clients use to communicate with the server?

A)IMAP4
B)SNMP
C)SMTP
D)POP3

Question 40

Jack wants to close down all open ports on his computer that are used by malicious programs. Which of the following troubleshooting commands should he use to learn the process IDs of the programs along with the list of all open ports?

A)Nbtstat -a
B)Netstat -e
C)Netstat -n
D)Netstat -o

Question 41

Which of the following IEEE standards is associated with VLAN trunking?

A)802.1V
B)802.1L
C)802.3
D)802.1Q

Question 42

You observe that CAT5e cables are lying around on the floor at various divisions of the APR.com office. What should you do about these cables?

A)Remove the cabling and install a wireless access point.
B)Reroute the cables using a protective sheath.
C)Tape the cables securely to the floor.
D)Inform the administrator about this potential security risk.

Question 43

Jack is having a tough time monitoring the users who want to access illegitimate web sites through the corporate Internet connection. At this point in time, the corporate network is not secure and protected. Jack wants to block unauthorized traffic from entering or leaving his corporate network. Which network device should he use?

A)Router
B)Gateway
C)Switch
D)Firewall

Question 44

You are trying to get on a secured wireless network. You can browse to the network, but cannot connect. Your client is set to use Wired Equivalent Privacy, and you know you have the passphrase right. What is the most likely problem?

A)The access point is using WPA or WPA2
B)The access point is using WEP
C)Its SSID broadcast is turned off
D)The access point is using a different 802.11 protocol than the client

Question 45

Which of the following TCP/IP ports does the LDAP protocol use?

A)20
B)389
C)23
D)80

Question 46

Jack has installed a basic router for a SOHO network. After the installation, the PCs connected to the router are not able to acquire an IP address. Which of the following did he fail to configure correctly?

A)NAT
B)DNS
C)WINS
D)DHCP

Question 47

What are the default ports for HTTP and HTTPS?

A)81 and 440
B)73 and 380
C)80 and 443
D)40 and 221

Question 48

You have added a new department in your building with 100 new employees. You already have a wireless network setup with optimal coverage. What should you do to increase the range of the wireless network?

A)Create a new wireless network for the new department
B)Place more access points in the new department
C)Move the antennas to the new department
D)Align the antennas in the old building to cover the newer wireless clients

Question 49

Jack reports that when the phone rings in his house, the wireless on his laptop becomes disconnected. Which of the following is a likely cause of this problem?

A)The cordless phones are operating at 2.4 GHz, which interferes with wireless.
B)The cordless phones are plugged into same outlet as the router.
C)The cordless phones are operating at 5.8 GHz, which interferes with wireless.
D)The cordless phones are plugged into the RJ11 jack.

Question 50

Which of the following statements about network protocols are true? Choose two.

A)The standard communication protocol for the Internet is TCP/IP.
B)To connect a Windows computer to the Internet, use NetBIOS.
C)You should only use TCP/IP to connect computers on a local area network.
D)Ethernet networks use NetBIOS.

Question 51

Jack is a network technician troubleshooting a network issue. Which of the following troubleshooting steps should he take first to resolve this issue?

A)Record the solution in the appropriate logs for future use.
B)Ask the user who reported the issue what past documentation they have.
C)Record what steps should be taken to resolve the issue.
D)Ask the user who reported the issue to explain the symptoms in detail.

Question 52

Dave is a new network consultant and is designing a new network for a small business. Dave discovers that the entire LAN, whose addresses are all 192.168.1.x/24, will need Internet access. What device must Dave install between the LAN and the Internet?

A)A Network Bridge
B)A Network Router
C)An Ethernet Tap
D)A Firewall

Question 53

A number of employees are complaining about slow Internet connection to John, the IT supervisor. John suspects crosstalk and wants to use the cabling standard that is least susceptible to crosstalk. Which type of cabling should he use?

A)UTP
B)STP
C)Fiber optic
D)Coaxial

Question 54

How does a router handle broadcasts?

A)Routers forward broadcasts, but do not initiate them.
B)Routers do not initiate or forward broadcasts.
C)Routers initiate broadcasts, but do not forward them.
D)Routers initiate broadcasts and forward them.

Question 55

Which of the following devices is used to break up a broadcast domain?

A)Switch
B)Router
C)Hub
D)Bridge

Question 56

Which of the following TCP features allows a receiving computer to inform the sending computer that the transmission rate needs to be slower?

A)Three-way handshake
B)Flow control
C)Windowing
D)Connection-oriented

Question 57

What does the jam signal on an Ethernet segment signify?

A)It indicates a physical problem on the wire.
B)It indicates congestion on the network.
C)It indicates that the server is down.
D)It indicates a collision on the wire.

Question 58

Which of the following fields make up a switch's bridge ID (BID)?

A)IP address and Bridge priority
B)MAC address and Bridge priority
C)Port priority and MAC address
D)Port priority and IP address

Question 59

4 VLANs (A, B, C, and D) are connected to a switch. A host on VLAN A sends a broadcast. What will the switch do now?

A)Forward the broadcast to all ports on VLAN A, except the one it was received on.
B)Forward the broadcast to all ports on all VLANs.
C)Forward the broadcast to all ports on VLAN B, C, and D.
D)Forward the broadcast to all ports on VLAN A, including the one it was received on.

Question 60

David is running Frame Relay LMI Autosense on a Cisco router. The router sends out three LMI messages. How many should it get back from the DCE?

A)1
B)3
C)2
D)0

Question 61

A VTP domain at your organization is made of a VTP server and three VTP clients. You want to add an additional switch to this domain. By default, what is the default mode of the new switch when it joins the domain?

A)The new switch can exist in a VTP server mode or a VTP Client mode, depending on whether a VTP server already exists on the network.
B)VTP client mode
C)The new switch is not placed into any mode by default.
D)VTP server mode

Question 62

Which of the following protocols does Frame Relay use to dynamically map DLCIs to IP addresses?

A)ARP
B)Reverse ARP
C)Dynamic DLCI
D)Inverse ARP

Question 63

Routers R2 and R4 are directly connected on their serial1 interfaces using a DTE / DCE cable. R2 is using HDLC encapsulation and R4 is using PPP. David runs a "show interface serial1" on both of the routers. What will be the command output show?

A)A message states, "Serial 1 is up, line protocol is down."
B)A message states, "Serial 1 is administratively down, line protocol is down."
C)A message states, "Serial 1 is down, line protocol is down."
D)A message states, "Serial 1 is up, line protocol is up."

Question 64

David has configured his company's ISDN link to use CHAP authentication. It worked well for a couple of weeks. However of late, the line drops very quickly after it comes up. David wants to check what the error could be. He decides to debug the CHAP process. Which command should he use?

A)debug chap authentication
B)debug ppp authentication
C)debug ppp chap
D)debug chap encryption

Question 65

In an ISDN link, a router dials another router to establish a connection. What is the traffic that enables this dialing process called?

A)Access-list traffic
B)Global traffic
C)Interesting traffic
D)ISDN traffic

Question 66

Which of the following RJ-45 cable types is used to connect a PC's COM port to a router or a switch console port?

A)Rollover cable
B)Straight through cable
C)Crossover cable
D)Crossover with a CSU/DSU

Question 67

Which of the following protocols use both TCP and UDP?

A)FTP
B)HTTP
C)DNS
D)SMTP

Question 68

What is the maximum number of hosts that can reside on a subnet with 255.255.255.192 as the subnet mask?

A)64
B)62
C)30
D)14

Question 69

John wants to divide his organization's network into 6 subnets. He should be able to allocate a maximum of 25 hosts on each subnet. The organization's network address is 202.142.16.5. Which of the following classful subnet masks should he use?

A)255.255.255.240
B)255.255.255.224
C)255.255.255.192
D)255.255.255.128

Question 70

John deletes the contents of the router's NVRAM and reboots it. Which of the following modes will the router go to when it reboots?

A)Global
B)Privileged
C)Setup
D)Reboot

Question 71

David has connected two switches using two crossover cables for redundancy. STP is disabled. Which of the following is most likely to happen between the switches?

A)The switched network will have broadcast storms.
B)The switches load balance between the two available links.
C)The routing tables on the switches will not get updated.
D)The MAC forward/filter table on the switches will not get updated.

Question 72

A switch receives a frame from a host on the network. The source MAC address on the frame is not listed in the MAC address table, but the destination MAC address is. What happens with the frame?

A)The frame is discarded.
B)The frame is broadcast to all other ports on the network.
C)The switch adds the source MAC address and the port to the MAC address table and sends the frame to the destination address.
D)The frame is sent back to the source MAC address.

Question 73

David is working as a network administrator at his organization. One of the switches on his network has a port status LED that is alternating between green and amber. What could this indicate?

A)There is a problem with the switch.
B)The port is in STP blocking mode.
C)The switch is operating normally.
D)The port is shut down.

Question 74

Which of the following statements is true for the network shown in the figure?

A)2 broadcast domains and 9 collision domains
B)3 broadcast domains and 9 collision domains
C)9 broadcast domains and 2 collision domains
D)9 broadcast domains and 4 collision domains

Question 75

Which one of the following can significantly increase congestion on an Ethernet network?

A)Subdividing the network into different VLANs
B)Increasing the number of collision domains
C)Adding more hubs in to the network
D)Adding more switches in to the network

Question 76

Which of the following maps multiple private IP addresses to a single registered IP address by using different ports?

A)Overloading NAT
B)Static NAT
C)Dynamic NAT
D)Overlapping

Question 77

Which of the following statements regarding a switch, bridge, or a hub is NOT true?

A)Both bridges and switches forward Layer-2 broadcasts.
B)Bridges do not forward Layer-2 broadcasts.
C)Switch broadcasts the frame sent by a host to all other hosts on the network.
D)Bridges gave a lower number of ports than switches.

Question 78

Which of the following components, when added, can enable host A to ping host B?

A)Crossover cable connecting the switches
B)A router connecting the switches using straight through cables
C)A hub connecting the switches
D)Straight-through cable connecting the switches

Question 79

David is a network administrator at his organization. Two office buildings need to be connected to use Ethernet with a bandwidth of 100 Mbps and above. David is concerned with an issue that may arise due to voltage differences between the two buildings. Which of the following media types should be used for the connection?

A)STP cable
B)Coaxial cable
C)UTP cable
D)Fiber optic cable

Question 80

You want to implement VLSM for a Class C address with a point-to-point serial link. Which of the following subnet masks is most efficient?

A)255.255.255.0
B)255.255.255.128
C)255.255.255.192
D)255.255.255.252