JK0-016 CompTIA Network+ 2009 Edition Practice Exam Set 3

As a network administrator, you are responsible for some remote servers in KoreA. Customers arecomplaining about the disconnection to the company??s resources placed on those servers. Select a command to verify the servers are operating 


Options are :

  • telnet
  • netstat
  • ping (Correct)
  • nbtstat

Answer : ping

Dynamic Host Configuration Protocol (DHCP) is a network application protocol used by devices (DHCP clients) to obtain configuration information for operation in an Internet Protocol network. A computer on the network is configured with DHCP, it is changing IP addresses, and the network technician would like to have the same IP address. How to do? 


Options are :

  • The technician needs to add the IP address to the host file
  • The technician needs to restart the DHCP services
  • The technician needs to add the computer to the reservation list. (Correct)
  • The technician needs to add the MAC address to the hostfile

Answer : The technician needs to add the computer to the reservation list.

Which type pf wireless device can synchronize the computer within 3 feet (1 meter) to accomplish the synchronization?   


Options are :

  • WiFi
  • Infrared (Correct)
  • Serial
  • Bluetooth

Answer : Infrared

During connectivity problems troubleshooting, which command will show the current NetBIOS configuration and open connections?   


Options are :

  • nbtstat (Correct)
  • ipconfig
  • msconfig
  • netstat

Answer : nbtstat

What is the maximum length of a gigabit Ethernet segment using MMF (MultiMode Fiber) optic cable?   


Options are :

  • 550 meters (1,804.46 feet) (Correct)
  • 100 meters (328.08 feet)
  • 250 meters (820.21 feet)
  • 3000 meters (9,842.52 feet)

Answer : 550 meters (1,804.46 feet)

You are a network technician of your company. Now you are asked to solve the desktop connection problems for a customer. Which action will you take first? 


Options are :

  • Check the LEDs on the NIC. (Correct)
  • Re-install the OS.
  • Reset the router.
  • Install a new NIC.

Answer : Check the LEDs on the NIC.

A network administrator installs a Linux DHCP (Dynamic Host Configuration Protocol) server. To configure the Windows clients to use the Linux DHCP (Dynamic Host Configuration Protocol) server, what must be configured on the Windows clients? 


Options are :

  • Windows clients are not compatible with Linux DHCP (Dynamic Host Configuration Protocol) server
  • Enable "Obtain IP (Internet Protocol) address automatically" (Correct)
  • Install WINS (Windows Internet Name Service)
  • Install a Linux compatible DHCP (Dynamic Host Configuration Protocol) client

Answer : Enable "Obtain IP (Internet Protocol) address automatically"

Select the network device which operates according to the IEEE 1394 standard.   


Options are :

  • iSCSI
  • Parallel
  • USB 2.0
  • FireWire (Correct)

Answer : FireWire

Coaxial cable, or coax, is an electrical cable with an inner conductor surrounded by a tubular insulating layer typically of a flexible material with a high dielectric constant. Which topology should be used if a company with five hosts moves into an office with coaxial cable? 


Options are :

  • Mesh
  • Spanning Tree
  • Bus (Correct)
  • Star

Answer : Bus

In a wireless G network, what is the probable reason for a wireless connection drop-off? 


Options are :

  • AM Radio
  • FM Radio
  • Cordless phones (Correct)
  • Cellular interference

Answer : Cordless phones

Which of the following wireless networks operate at the 5.0 GHz radio frequency band? 


Options are :

  • IEEE 802.11b
  • IEEE 802.11a (Correct)
  • Bluetooth
  • IEEE 802.11g

Answer : IEEE 802.11a

After wiring your company's network in a bus topology, one computer can't visit the network. During the troubleshooting, which action will be taken first by the technician?   


Options are :

  • Replace the cable
  • None
  • Check the cable connections (Correct)
  • Replace the NIC
  • Reinstall the NIC driver.

Answer : Check the cable connections

IEEE 802.11b can transmission data at up to ______ Mbps. 


Options are :

  • 2
  • 100
  • 11 (Correct)
  • 54

Answer : 11

Which command will generate the following output? TCP Certs03:1072 172.31.0.78:3389 Established 


Options are :

  • arp
  • netstat (Correct)
  • tracert
  • ping

Answer : netstat

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 (Internet Protocol) address on each subnet for the router interface. What IP (Internet Protocol) address should the administrator assign to the router? 


Options are :

  • 192.168.95.255
  • 192.168.96.255
  • 192.168.95.254
  • 192.168.96.254 (Correct)

Answer : 192.168.96.254

RJ45 is a standard type of connector for network cables such as those used in Ethernet networks. When crimping a RJ-45 connector, which pin-out configuration is often used? 


Options are :

  • IEEE 802.5
  • UTP
  • T568A/B (Correct)
  • STP

Answer : T568A/B

A DNS server is a special type of computer on the Internet used to support the Domain Name System. Refer to the following commands, which can determine the currently assigned DNS server? 


Options are :

  • netstat
  • dig
  • nslookup (Correct)
  • nbtstat

Answer : nslookup

You are a network technician of your company. You are reported that users are occupying most bandwidth to share file applications across the T1, this results in poor voice quality. How to solve this problem? 


Options are :

  • Configure a separate VLAN for the IP phones.
  • Configure traffic shaping to reduce the bandwidth available to the file sharing application (Correct)
  • Install a content caching proxy at the branch to reduce inbound WAN traffic
  • Upgrade switches to provide higher bandwidth ports for workstations and IP phones.

Answer : Configure traffic shaping to reduce the bandwidth available to the file sharing application

You are the network administrator at certways .com. certways.com has several workstations that have wireless 802.11g network adapters. Every day at around lunchtime wireless users complain of lack of connectivity. What can you do to this problem?   


Options are :

  • Configure the wireless workstations and the WAP to operate in ad-hoc mode.
  • Replace the WAP with an 802.11b WAP.
  • Reduce the Radio Frequency Interference around the WAP. (Correct)
  • Connect the WAP directly to the network.

Answer : Reduce the Radio Frequency Interference around the WAP.

Your company's web server is placed in the moisture control environment, with many power sources and a UPS to maximize the working time. Which of the following can increase the network uptime for the web server?   


Options are :

  • Upgrade the outbound NIC to a gigabit card
  • Upgrade all switches to Gigabit speed
  • Install additional NICs (Correct)
  • Install an additional Router

Answer : Install additional NICs

You are a network technician of your company, after pinging 127.0.0.1, you receive the following message: Unable to contact IP driver, error code 2. How to resolve this problem? 


Options are :

  • Install NetBEUI.
  • Flush the DNS Cache
  • Install the TCP/IP protocol. (Correct)
  • Release the IP Address.

Answer : Install the TCP/IP protocol.

The wired workstations can't connect to the file server after installing a new wireless router. How to resolve this intermittent issue? 


Options are :

  • Check user permissions.
  • Change the router's SSID.
  • Check the cable ends. (Correct)
  • Move the router's location.

Answer : Check the cable ends.

RJ45 is a standard type of connector for network cables such as those used in Ethernet networks. Select one tool from the following to physically attach a J-45 connector to a CAT5 cable. 


Options are :

  • Punch down tool
  • Screwdriver
  • Crimping tool (Correct)
  • Snips

Answer : Crimping tool

Which of the following is associated with dynamic port bonding? 


Options are :

  • Spanning Tree
  • Trunking
  • LACP (Correct)
  • 802.1q

Answer : LACP

In electronics, the term crosstalk (XT) refers to any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel. What can prevent crosstalk?   


Options are :

  • 100Base-FX (Correct)
  • STP
  • 1000Base-T
  • 10GBase-CX

Answer : 100Base-FX

In order to connect a WAN to a LAN, which equipment is  applicable?


Options are :

  • Bridge
  • Repeater
  • Basic switch
  • Basic router (Correct)

Answer : Basic router

Your company uses a wired bus topology, a client unplugs the network cable connected to their computer by mistake. What will happen to the company network? 


Options are :

  • It will function properly once all affected PCs are rebooted and authenticate to the network.
  • It will function with minimal downtime.
  • It will function with no downtime.
  • It will not function properly until the wires are reconnected. (Correct)

Answer : It will not function properly until the wires are reconnected.

The data center will be powered off for several hours. In order to make the date center continue working, which action will be taken first? 


Options are :

  • Connect all the switches to a battery backup.
  • Connect the data centers power to a generator (Correct)
  • Connect all the switches to a generator
  • Connect the data centers power to a UPS.

Answer : Connect the data centers power to a generator

There are three Windows 2000 servers, a NetWare server, and ten Windows 2000 clients. A networktechnician installs NWLINK on the Windows servers and clients, yet the clients cannot access the Novell server. What step must be taken so that the clients can access the Novell server? 


Options are :

  • GSNW (Gateway Services for NetWare) on the Windows clients
  • CSNW (Client Services for NetWare) on the Windows 2000 servers
  • CSNW (Client Services for NetWare) on the Windows clients (Correct)
  • GSNW (Gateway Services for NetWare) on the NetWare server

Answer : CSNW (Client Services for NetWare) on the Windows clients

The function of a tone generator is to generate a tone to test:   


Options are :

  • signal strength.
  • impedance
  • signal feedback.
  • continuity (Correct)

Answer : continuity

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