MCQ's For Computer/EC/IT -6



Networking Essentials Question Bank

Answer: C

A. Star
B. Bus
D. Ring
Answer: D

3.      Which one of the following is an IEEE (Institute of Electrical and Electronic Engineers) copper cable standard?
Answer: B

Answer: C

A. 1 Mbps
B. 2 Mbps
Answer: D

Answer: D

B. Router
D. Modem
Answer: D

  1. The 802.11 frequency band is:
Answer: B

A. 32 bit
B. 40 bit
C. 64 bit
Answer: A

10.  Which one of the following is an IEEE (Institute of Electrical and Electronics Engineers) fiber optic standard?
Answer: B

Answer: B

A. 1 Mbps
B. 2 Mbps
Answer: C

Answer: D

Answer: C

Answer: D

Answer: D

D. X 25
Answer: D

Answer: D
Answer: C

Answer: D

21.  One of the purposes of a VLAN (Virtual Local Area Network) is to:
A. enforce better security
B. add more users
C. limit the network bandwidth
D. reduce the number of subnets
Answer: A

22.  Which type of server stores information about network entities and resources and is used for authentication?
A. NDS (NetWare Directory Services)
B. NWLINK
C. Kerberos
D. NLM (NetWare Loadable Module)
Answer: A

23.  The ABC Computer Human Resources department requires an internal web site designed to be accessible to an external recruiting agency to update job postings. Which of the following terms describe the web site function?
A. Intranet
B. Internet
C. Extranet
D. Homepage
Answer: C

24.  Which one of the following files must be edited to properly configure a UNIX remote access connection?
A. Devices and dialers
B. Users and servers
C. Hosts and security
D. Syslogs and crontab
Answer: A

25.  Which protocol uses domain name resolution to find addresses?
A. TCP / IP Transmission Control Protocol / Internet Protocol)
B. IPX / SPX (Internetwork Packet Exchange / Sequence Packet Exchange)
C. NetBEUI (Network Basic Input / Output Extended User Interface)
D. AppleTalk
Answer: A

26.  You work as a network administrator at ABC Computer. You need to reduce the bandwidth used between the ABC Computer and the Internet. Which one of the following could be implemented to accomplish this?
A. WINS (Windows Internet Name Service) server
B. Proxy server
C. DHCP (Dynamic Host Configuration Protocol) server
D. HTTP (Hypertext Transfer Protocol) server
Answer: B

27.  AV (Anti-Virus) software will help protect a computer from:
A. Trojans
B. Hackers
C. Unsigned drivers
D. ActiveX exploits
Answer: A

28.  A technician is assisting their senior technician with terminating a line that was extending the demarcation point for a new DSL (Digital Subscriber Line) circuit. Which tool would be needed?
A. Multimeter
B. Optical tester
C. Punch down tool
D. BERT Bit-Error Rate Test)
Answer: C

29.  A packet filtering firewall operates at which layers if the OSI (Open Systems Interconnect) model?
A. Network and Data Link
B. Network and Transport
C. Transport and Session
D. Physical and Data Link
Answer: B

30.  In order for a client to share resources in a wired network, the client must be physically connected and:
A. Mapped to the resources using the host name, followed by the resource name.
B. Allowed permission to the resources.
C. Be a member of AD (Active Directory)
D. Be listed in DNS (Domain Name Service)
Answer: B

31.  Which of the following options are the minimal settings for connecting a computer to a TCP / IP (Transmission Control Protocol / Internet Protocol) LAN (Local Area Network) while accessing the Internet?
A. IP (Internet Protocol) address, subnet mask, gateway, and DNS (Domain Name Service)
B. IP (Internet Protocol) address and gateway
C. Subnet mask, IP (Internet Protocol) address, and DNS (Domain Name Service)
D. IP (Internet Protocol) address, DNS (Domain Name Service, and gateway
Answer: A

32.  You work as a network administrator at ABC Computer. The IT department is experimenting with a new DHCP server. Which of the following actions would ensure that the DHCP server does not impact clients from other departments?
A. Create a new subnet for the IT department.
B. Add a hub for the IT department.
C. Enable IPX / SPX on the DHCP server.
D. Ensure NetBEUI is not installed on the DHCP server.
Answer: A

33.  You work as a network administrator at ABC Computer. You administer the ABC Computer Windows 2000 network, and recently added a DNS server to the network and deployed AD. Users have been instructed to update their TCP/IP configuration to ensure they will use the correct DNS server. What command should the users input?
A. nbstat –RR
B. nslookup
C. ipconfig/renew
D. winipcfg
Answer: C

34.  You work as a network administrator at ABC Computer. You change the lease time of the DHCP scope from one week to one day. What affect will this have on the end users?
A. The users will have to re-logon every day now.
B. The users will have to manually release and renew their IP addresses to continue working on the network.
C. The users will not be affected by the change.
D. The users will have to shut their computers down for the duration of the lease to obtain a new lease.
Answer: C

35.  The DNS server has suffered a catastrophic failure. What will happen to the DNS clients?
A. They will be unable to renew their IP addresses.
B. They will be unable to reference a server by host name.
C. They will be unable to reference a server by NetBIOS name.
D. They will be unable to renew their IPX address.
Answer: B

36.  A workstation presents an error message to a user. The message states that duplicate IP has been detected on the network. Using the standard troubleshooting model, what should be completed first?
A. Test the result.
B. Document the solution and process.
C. Implement an action plan.
D. Identify the symptoms and potential causes.
Answer: D

37.  A Windows user wants to access a share hosted on a Mac OS X server, but the server is not visible on then network. What must the network administrator enable on the Mac OS X server to allow Windows users to connect to shares?
A. AFP
B. VPN
C. Windows file and print sharing
D. DHCP
Answer: C

38.  An office has recently installed a number of ceiling fans. Users complain of slow activity on the LAN and WAN. Nothing on the Category 5 UTP network has changed to cause this. What is responsible for the slow activity?
A. AMI (Alternate Mark Inversion)
B. EMI (Electromagnetic Interference)
C. MIB (Management Information Base)
D. FDM (Frequency Division Multiplexing)
Answer: B

39.  A Windows 2000 work station has a TCP/IP address of 169.254.21.1. Which statement describes the sate of the computers TCP/IP configuration?
A. The network administrator assigned an address of 169.254.12.1 for the network.
B. The computer is set for DHCP, but no DHCP server is available for the network.
C. The computer received the address from a DHCP server on the network.
D. The computer received the address from a BootP server on the network.
Answer: B

40.  An administrator has been called to consult on a network. After receiving network traffic statistics, the administrator notices that there is an abnormally high amount of DHCP traffic. What recommendation would the administrator give to the customer to reduce the traffic?
A. Configure the DHCP server to increase lease expiration time.
B. Configure the DHCP server to decrease lease expiration time.
C. Configure the DHCP client to increase lease expiration time
D. Configure the DHCP client to decrease lease expiration time.
Answer: A

41.  A workstation can no longer connect to the network. Which LED should a user check FIRST on a NIC to identify the problem?
A. Link
B. Activity
C. Collision
D. Power
Answer: A

42.  A user wants to log onto their server using the SSH terminal from home, but cannot because the connection times out. Which standard port would have to be redirected from the router to the IP address?
A. 23
B. 22
C. 21
D. 20
Answer: B

43.  A user is complaining that it takes too long to access an application on a remote server. Which utility will identify the number of hops from the clients to the server where the application resides?
A. nbstat
B. nslookup/dig
C. netstat
D. tracert/traceroute
Answer: D

44.  If one of the links to a computer on a physical star topology is served, what will be the result?
A. The entire network will stop working.
B. The affected link and the adjacent network links will stop working.
C. Only the affected link will stop working.
D. Only the adjacent links will stop working.
Answer: C

45.  A user cannot reach a specific web site, but can access other web sites. What command would help diagnose the problem?
A. arp
B. ipconfig
C. netstat
D. tracert
Answer: D

46.  There is a suspected SMTP virus on the workstation. E-mail programs are not currently running. Which of the following utilities should be run to see if there are any open SMTP sockets?
A. nbstat
B. netstat
C. arp
D. nslookup
Answer: B

47.  Identify the utility being used given the output:
Interface: 206.212.36.18 on Interface 1
Internet Address Physical Address
206.212.36.9 00-00-21-64-91-12 Dynamic
206.212.36.12 00-00-21-1b-4a-a7 Dynamic
A. netstat
B. arp
C. nbstat
D. tracert/traceroute
Answer: B

48.  You work as a network administrator at ABC Computer. Ten workstation numbered 1 through 10 are installed sequentially on a physical bus network. A request was made to separate workstations 1 through 5 and workstation 6 through 10 into two separate networks. An engineer cut the cable between workstations 5 and 6. What else, if anything, must the engineer do to complete the job?
A. Do nothing, the job has been successfully completed.
B. Install a terminator on the severed end of the bus trunk cable connecting workstations 1 through 5.
C. Install a terminator on the severed end of the bus trunk cable connecting workstations 6 through 10.
D. Install terminators on both severed end of the bus trunk cable.
Answer: D

49.  Which of the following is a true statement regarding TCP and UDP?
A. TCP is connection-oriented UDP is reliable.
B. TCP is connectionless, UDP is unreliable.
C. TCP is connection-oriented, UDP is unreliable.
D. TCP is connectionless, UDP is reliable.
Answer: C

50.  A user is unable to reach a web site on a host computer. The user can ping the host name and Telnet to the host name. What is the source of the problem?
A. The host does not have a DNS entry.
B. The host HTTP is down.
C. The host does not have a WINS entry.
D. The host is down.
Answer: B