CompTIA Sample Questions

The IEEE standard 802.3af states the specifications for which of the following?

A) Quality of Service
B) Routing tables
C) Power over Ethernet
D) VLANs

A user's remote marketing server has changed IP address schemes and now the user can no longer access it. The user further discovers that the distant end still has access to them. Which of the following is a possible cause?

A) SNMP strings need to be added
B) Firewall rules need to be configured
C) Port bonding on the interface needs to be enabled
D) The switch has lost power

Which of the following is a network device that allows remote users access to a network?

A) VPN concentrator
B) Load balancer
C) DNS server
D) Content filter

A technician suspects that a virus has been introduced on the network. Which network resource is BEST used to confirm this problem?

A) Syslog
B) SNMP
C) Network sniffer
D) Environmental monitor

A user reports a network connectivity problem. Which of the following steps should the technician perform FIRST?

A) Test the theory of the cause
B) Determine a probable cause
C) Implement the solution of the cause
D) Identify the problem

Which of the following protocols is used by a web browser to display a web page?

A) FTP
B) IMAP4
C) SMTP
D) HTTP

Which of the following record types is required for every server in a DNS environment?

A) SFP
B) AAA
C) MX
D) A

The frequency of the 802.11b and 802.11g is which of the following?

A) 1800MHz
B) 5GHz
C) 2.4GHz
D) 900MHz

Which of the following uses port 22 by default?

A) SSH
B) TELNET
C) DNS
D) FTP

A user is unable to connect to a network with encryption. The user is able to see the network and has the correct passphrase. Which of the following is MOST likely the problem?

A) Encryption type
B) Standard mismatch
C) SSID mismatch
D) Signal strength

A technician is troubleshooting a UTP cable that has been suspected of having problems due to EMI. Which of the following cables should the technician use without adding new equipment to the network?

A) Multimode fiber
B) STP
C) Singlemode fiber
D) Plenum

Which of the following network topologies describes a network where packets of data are transmitted from one computer to another in a circular fashion?

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

Which of the following defines the length of time a device retains its IP address for?

A) Scope
B) Subnet
C) Reservation
D) Lease

Which of the following virtual devices is the BEST to use to host a company's website?

A) Desktop
B) Switch
C) PBX
D) Server

A cable standard that includes a fire-retardant jacket is:

A) UTP cable
B) fiber cable
C) plenum cable
D) coaxial cable

A new drop is active according to the network administrator. A technician takes a laptop to the new drop to test connectivity and gets an intermittent signal. Which of the following tools could the technician use to test the line?

A) Cable tester
B) Toner probe
C) Protocol analyzer
D) Environmental monitor

An administrator works for a law firm in an office building in a major city. After installing a new wireless access point, the administrator secures the device using WPA and then connects to it using a laptop. Which of the following would be the logical NEXT step in securing the device?

A) Remove the antennas
B) Check neighboring offices for connectivity and reduce the signal strength appropriately
C) Add a second SSID broadcast to the access point and name it the same as a neighboring company
D) Change the wireless encryption type to WEP

An administrator is asked to set up a home office for a user who would like to connect to the Internet and share files with all six computers in the home. Which of the following are the MINIMUM requirements if the user refuses to install wireless devices and all computers contain working network cards?

A) Switch, Firewall, Cables
B) Router, Switch, Cables
C) Firewall, Router, Cables
D) Hub, Cables, Firewall

The command netstat –n will display which of the following?

A) IP address
B) Protocol statistics
C) Ethernet statistics
D) Address and port numbers in numerical form

A business has expanded to additional floors in the building. The expansion only calls for switches and patch panels to be installed. Which of the following would the network manager need to locate?

A) Smart jack
B) MDF
C) IDF
D) Demarc

A network administrator needs to implement a new wireless network for a coffee shop. The shop wants to allow users wireless access from anywhere in the shop, but not outside. Which of the following should be the GREATEST concern for the administrator?

A) WAP placement
B) Compatibility
C) Interference
D) Channel

A user receives an information message on their computer stating a duplicate address exists. A technician would discover that which of the following is true?

A) Wrong gateway
B) Wrong subnet mask
C) IP address conflict
D) Evil twin

Which of the following layers is the presentation layer?

A) Layer 7
B) Layer 6
C) Layer 3
D) Layer 5

When differentiating hubs from switches, which of the following is FALSE?

A) Switches have a single broadcast domain.
B) Switches have multiple collision domains.
C) Hubs have multiple collision domains.
D) Hubs have a single broadcast domain.

Which of the following connector types are MOST commonly associated with phone jacks?

A) ST
B) SC
C) RJ-11
D) RJ-45

Which of the following 802.11 channels operates above 5GHz?

A) i
B) b
C) g
D) a

Which of the following allows the LONGEST distance using single-mode fiber?

A) 10GBaseSR
B) 10GBaseER
C) 10GBaseSW
D) 10GBaseLW

A switch can separate different subnets by configuring:

A) trunking on all ports
B) STP on the main ports
C) VTP on each switch
D) VLANs throughout the ports

At which of the following layers does the HTTP protocol operate?

A) Layer 4
B) Layer 5
C) Layer 1
D) Layer 7

Which of the following WAN technology types provides the FASTEST speeds?

A) OC3
B) SDSL
C) ADSL
D) T3