Test your basic knowledge |

Comptia Network +

Subjects : certifications, comptia-network-+, it-skills

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. BIOS Means...
Internet Information Services
550 meters (1 -804.46 feet)
Basic Input/Output System
A long length of antenna extension cable

2. Connecting a LAN (Local Area Network) to a mainframe can be accomplished using a...
There will be no Internet access.
File Transfer Protocol
Eliminate any sources of RFI (Radio Frequency Interference) around the WAP (Wireless Access Point) Answer: D
gateway.

3. A workstation presents an error message to a user. The message states that 'Duplicate IP (Internet Protocol) has been detected on the network.' After establishing what has changed in the network - what should be the NEXT step using the standard troub
Select the most probable cause
Port Address Translator
Eliminate any sources of RFI (Radio Frequency Interference) around the WAP (Wireless Access Point) Answer: D
Proxy Server

4. Which one of the following is an IEEE (Institute of Electrical and Electronics Engineers) fiber optic standard?
10 GBASE-LR
1000BASE-CX
Stores and dispenses files
Exterior Gateway Protocol

5. What is on Port 389?
They get their name because they truly are 'at the service' of the network and run specialized software for the network's maintenance and control known as the network operating system. Sometimes servers have more than one job. But whether servers are
LDAP - Active Directory (Windows) - e-Directory (Novell) - Open Directory (Apple)
Wireless LAN
Not scalable - Expensive - Difficult to reconfigure - move - or change - Not fault tolerant

6. A user has set up filtering on an Internet router. The local SMTP (Simple Mail Transfer Protocol) server has stopped sending or receiving messages from the Internet. What is the cause of the problem?
cold site.
Quality of Service
An old microwave oven is being used in the break room which causes interference with the access point.
The Internet router is blocking port 25.

7. What is EGP?
Networked Basic Input/Output System
Authentication
Central Processing unit
Exterior Gateway Protocol

8. Which fiber connector looks similar to an RJ-45 (Registered Jack) connector and connects two strands of fiber?
MT-RJ (Mechanical Transfer-Registered Jack)
Usually restricted to spanning a particular geographic location such as an office building - a single department within a corporate office - or even a home office)
CSU / DSU (Channel Service Unit / Data Service Unit)
IMAP (Mail Client)

9. Which layer of the OSI (Open Systems Interconnect) model handles formatting and code conversion?
PPP (Point-to-Point Protocol)
CSU / DSU (Channel Service Unit / Data Service Unit)
Presentation
Multipurpose Internet Mail Extension

10. A network administrator notices in his secure wireless office that many of his wireless client machines constantly lose network connectivity. The wired clients never have downtime. Theadministrator also notices that the wireless clients all lose conn
gateway.
The Internet router is blocking port 25.
MAC (Media Access Control) address
Check the connection from the WAP (Wireless Access Point) to the network

11. What is IP?
Internet Information Services
Windows Internet Name Service
Select the most probable cause
Internet Protocol

12. ICMP means...
Uniform Resource Locator
Multiple Link Interface
Problematic workstations have cached the old IP (Internet Protocol) address of the server.
Internet Control Message Protocol

13. A small company connected to the Internet through a SOHO (Small Office / Home Office) router wants to make an internal web server public on the Internet. Computers on the LAN can access the web pages but Internet users cannot. What should be done to
Make certain the web site has an external DNS (Domain Name Service) name and a public IP address - and that port 80 is open on the router.
Consists of two distinct and terminated ends with each computer connected to one unbroken cable running its entire length. All of the computers can see all of the data flowing through but the only one computer the data is addressed to will actually g
Not scalable - Expensive - Difficult to reconfigure - move - or change - Not fault tolerant
6

14. On what Port is NetBios?
110
Hypertext transfer protocol
135-139
Network Access Control

15. A client accessing a network share folder has authenticated into the system and has full access rights to a folder share. But after opening the file they find they cannot modify the files contents. What is the likely cause?
Proxy Server
An old microwave oven is being used in the break room which causes interference with the access point.
The file has been opened by another user and is open for read only.
The Internet router is blocking port 25.

16. Fax Server

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17. Which networking device works at the upper three layers of the OSI (Open Systems Interconnect) and connects networks with different architectures?
Network Access Control
Disk Operating System or Denial of Service
Each computer is directly connected to other computers in the same network and data flows in a circle shape from computer to computer and eventually back to the source. This topology isn't very popular because it's not easily scalable and the cable r
Gateway

18. NFS Means...
T1 (T-Carrier Level 1).
110
Network File System
MultiProtocol Label Switching

19. Application Server
Manages network applications
Configure the DHCP (Dynamic Host Configuration Protocol) server to increase lease expiration time
Initial installation cost may be higher - One central single point of failure (the hub or other device)
Point-to-Point Tunneling Protocol

20. Fault Tolerance
Verification
The capability of a computer or a network system to respond to a condition automatically - often resolving it - reducing the impact on the system.
private IP (Internet Protocol) addresses must be obtained dynamically from the ISP (Internet Service Provider).
A transmission method in which data is sent from a server to specific nodes that are defined as members of a multicast group. Network nodes not in the group ignore the data.

21. What is OSPF?
HTTP
Open Source Path First - this is a routing protocol
Network Address Translator
Remote Desktop Protocol

22. Which protocol is used for error reporting in concert with the IP protocol?
Problematic workstations have cached the old IP (Internet Protocol) address of the server.
ICMP (Internet Control Message Protocol)
The amber light is flashing occasionally and the green light is lit steadily.
514

23. In a fully Meshed network - every node has a connection to every other node - 7+6+5+4+3+2+1=28 Which digital interface device is used to connect to a local service providers digital T1 (T-Carrier Level 1) or E1 network?
D. Switch and bridge
Each computer is directly connected to other computers in the same network and data flows in a circle shape from computer to computer and eventually back to the source. This topology isn't very popular because it's not easily scalable and the cable r
CSU / DSU (Channel Service Unit / Data Service Unit)
In a locked room in an offsite location

24. SSL Means...
WEP (Wired Equivalent Privacy)
Secure Sockets Layer
netstat and ping
CSU / DSU (Channel Service Unit / Data Service Unit)

25. A rogue residential gateway has been installed in a network. It is running DHCP (Dynamic Host Configuration Protocol). If the computers have static IP (Internet Protocol) addresses assigned - what problems might exist on the network?
SUN RPC
IMAP (Mail Client)
There will be no Internet access.
Internet Control Message Protocol

26. Given the output: 1.pgw (129.6.80.254) * 4ms 3ms 2.129.6.1.245 (129.6.1.245) 4ms 3ms * 3.129.6.2.252 (129.6.2.252) 5ms 5ms 4ms Which of the following commands causes the results above?
traceroute
Electromagnetic Interference
Dynamic Host Configuration Protocol
Secure Sockets Layer

27. On what Port is SSH?
22
2.4 GHz (Gigahertz).
802.11b
80

28. GPS means...
They get their name because they truly are 'at the service' of the network and run specialized software for the network's maintenance and control known as the network operating system. Sometimes servers have more than one job. But whether servers are
Implement VLANs (Virtual Local Area Network)
Global Positioning System
Domain Name Service OR Domain Name Server

29. What is QoS?
514
A network map showing exactly how data moves through the network.
Network Interface Card
Quality of Service

30. MPLS
A transmission method in which data is sent from a server to specific nodes that are defined as members of a multicast group. Network nodes not in the group ignore the data.
MultiProtocol Label Switching
Transmission Control Protocol
Stores and dispenses files

31. A firewall differs from a proxy server in that a proxy server operates at which of the following levels of the OSI (Open Systems Interconnect) model?
Application
DNS (Domain Name Service) server settings
New stations can be added easily and quickly - Scalable - Easier to troubleshoot - A single cable failure doesn't disable entire network
netstat

32. This is not an IP (Internet Protocol) addresses.
Internet Control Message Protocol
Easy to install - Inexpensive - Less actual cable required
Someone has enabled an additional DHCP (Dynamic Host Configuration Protocol) server.
72.16.16.1

33. A user is trying to access a FTP (File Transfer Protocol) server but discovers that FTP (File Transfer Protocol) is being blocked by a firewall. After unblocking port 21 on the firewall - FTP (File Transfer Protocol) still does not work. What is the
Port 20 must also be unblocked.
A transmission method in which data goes form a source node to all other nodes on a network. Each node receives the data and acts on it - which can generate a great deal of network traffic.
802.11b
Split the scope addresses between the servers assigning 192.168.0.1 through 192.168.0.127 for the PDC (Primary Domain Controller) and 192.168.0.128 through 192.168.0.254 for the BDC (Backup Domain Controller).

34. MAN Means...
Electromagnetic Interference
Transport
A transmission method in which data is transferred from a specific source address to a specific destination address. (Network nodes not involved in the transfer ignor the transmission.)
Metropolitan Area Network

35. LAN Means...
SQL Server
72.16.16.1
Local Area Network
Bluetooth enabled cell phones

36. A network has been set up for DHCP (Dynamic Host Configuration Protocol) services using a PDC (Primary Domain Controller) and BDC (Backup Domain Controller) each with a range of 192.168.0.1 to192.168.0.254 using a class subnet of 255.255.255.0. DHCP
Port 161 is SNMP and Port 162 is the SNMP Manager
Split the scope addresses between the servers assigning 192.168.0.1 through 192.168.0.127 for the PDC (Primary Domain Controller) and 192.168.0.128 through 192.168.0.254 for the BDC (Backup Domain Controller).
PPTP (Point-to-Point Tunneling Protocol)
Plain Old Telephone Service

37. A company wishes to establish a secure network connection with a sister company over the Internet. Both companies must have access to each others resources without allowing general public access. What describes the type of network that should be empl
This IP (Internet Protocol) address cannot be pinged remotely.
53
Extranet
User Datagram Protocol. This protocol is connectionless and routable.

38. A network administrator is configuring a router to support a new subnet on a TCP / IP (Transmission Control Protocol / Internet Protocol) network. The subnet uses 192.168.96.0/24. The administrators company policy is to reserve the highest IP (Intern
The device ID (Identification)
Periodically (randomly) blinking
192.168.96.254
Post Office Protocol

39. WPA Means...
Wireless Protected Access
Forward the packets to all ports except the one that originated the request
CSU / DSU (Channel Service Unit / Data Service Unit)
Hypertext transfer protocol over secure sockets layer.

40. MAU means...
Extensible Authentication Protocol. It is used in 3rd party authentication providers/ multi-factor authentication.
Media Access Unit - Media attachment Unit
Primary Rate Interface
TFTP (Trivial File Transfer Protocol)

41. TCP/IP Means;
TFTP (Trivial File Transfer Protocol)
Transmission Control Protocol/Internet Protocol
Internet Protocol Security. This is the defacto standard for VPN security.
Transport

42. A small office network with ten computers uses a cable modem and router to connect to the Internet and distribute services to clients. After several weeks of use - the routers collision LED (Light Emitting Diode) has begun to stay on permanently. Wha
There are too many collisions occurring in traffic. Disconnect each network card individually to find and replace the one that is broadcasting.
Firewall
53
Network Interface Card

43. What is on Ports 20 and 21?
These are the FTP ports. Port 20 handles data and Port 21 provides control.
Network News Transfer Protocol
Two or more connected computers that can share resources
The capability of a computer or a network system to respond to a condition automatically - often resolving it - reducing the impact on the system.

44. A network administrator is in charge of a large corporate network containing a DNS (Domain Name Service) server - DHCP (Dynamic Host Configuration Protocol) server - and an internal web server. One particular subnet is experiencing trouble with Inter
Enable infrastructure mode and obtain the IP (Internet Protocol) address automatically on all clients
Application
Global System for Mobile Communications
Internet Control Message Protocol

45. Telephony Server
8080
Handles the call center and call routing and can be thought of as a sophisticated network answering machine
Lightweight Extensible Authentication Protocol. This is a Cisco proprietary solution.
User Datagram Protocol. This protocol is connectionless and routable.

46. What is LEAP?
passing a username and password in plaintext.
1000BASE-CX
Lightweight Extensible Authentication Protocol. This is a Cisco proprietary solution.
MT-RJ (Mechanical Transfer-Registered Jack)

47. An administrator changes the lease time of the DHCP (Dynamic Host Configuration Protocol) scope from one week to one day. What affect will this have on the end users?
Point-to-Point Tunneling Protocol
ping
Internet Service Provider
The users will not be affected by the change.

48. On what Port is the SMTP Server?
25
Post Office Protocol 3
Telnet
Extranet

49. BRI Means...
TFTP (Trivial File Transfer Protocol)
Basic Rate Interface
DNS
The device ID (Identification)

50. FQDN means...
Fully Qualified Domain Name
Application
In the LAN (Local Area Network)
Basic Rate Interface