Which of the following statements accurately describes how a modem works? - CORRECT ANSWERS-It demodulates anolog data from a telphone network into digital pc data.
It modulates digital data from the pc inito analog data and transmits it on a telelphone network
At which OSI model layer does a media converter operate? - CORRECT ANSWERS-
Layer 1
Which of the following i a valid MAC address? - CORRECT ANSWERS-
ab.07.cf.62.16.bd
Which of the following is true about the mac address - CORRECT ANSWERS-It is typically represented by hexadecimal numbers
it is a 48-bi address
You have a server that has a 100baseFx network interface card that youneed to connect to a switch. The switch only has 100BaseTX switch ports. - CORRECT ANSWERS-media converter
What device sends signals from a computer onto a network? - CORRECT ANSWERS-
Transceiver
Which of the following is valid Mac address - CORRECT ANSWERS-co.36.ff.15.01.8E
A host wants to send a message to another host with IP address 115.99.80.157. Ip doesn't know the hardwar address of the destination device. Whci protocol can be used to discover the MAC address? - CORRECT ANSWERS-ARP
What type of module might a switch use to allow it to modify the media type supported by a switch port? - CORRECT ANSWERS-GBIC
SFP
Which network component connects a device with the transmission media and allows it to send and receive messages? - CORRECT ANSWERS-Network interface card What topology does each device on the network act as a repeater, sending the signal to
the next device? - CORRECT ANSWERS-ring
you have a network that uses a logical ring topology. How do messages travel through the network? - CORRECT ANSWERS-Messages travel from one device to the next until
they reach the destination device.
Which of the following topologies connects all devices to a trunk cable? - CORRECT ANSWERS-bus
You want ot implement a fault tolerant topology as you interconnect routers on you wide
area network. Whcih of the following would meet your needs? - CORRECT ANSWERS-
Mesh
You have been asked to implement a network infrastructure that will accommodate failed connections. Which of the following network topologies provides redundancy for a
failed link? - CORRECT ANSWERS-Mesh
Which of the following topologies connects each device to a neighboring device? - CORRECT ANSWERS-Ring
You have a network that uses logical bus topology. How do messages travel through the network? - CORRECT ANSWERS-Messages are broadcast to all devices connected to the network.
What device is used to create a physical star topology? - CORRECT ANSWERS-switch
What topology connects each network device to a central hub? - CORRECT ANSWERS-star
You have implemented an ad-hoc wireless network that doesn't employ a wireless access point. Every wireless network card can communicate directly with any other wireless network card on the network. - CORRECT ANSWERS-mesh
you have a small network that uses a hub to connect multiple devices. What physical topology is used? - CORRECT ANSWERS-star
What topology connects each network device to a central hub? - CORRECT ANSWERS-star
Your company has just acquired another company in the same city. You are given the task of integrating the two e-mail systems so that messages can be exchanged between
e-mail servers. However, each network uses an e-mail package from a different vendor.
Which TCP/IP protocol will enable messages to be exchanged between systems? - CORRECT ANSWERS-SMTP You want to transfer a file from a UNIX server to a Windows 2000 computer. Which of the following utilities could you use to do this? - CORRECT ANSWERS-FTP
TFTP
What protocol sends e-mail to a mail server? - CORRECT ANSWERS-SMTP
Which protocol is used on the world wide web to transmit web pages to web browsers? - CORRECT ANSWERS-HTTP
You want to allow you users to download files from a server running the TCP/IP protocol. You want to require user authentication to gain access to specific directories on the server. Which TCP/IP protocol should you implement to provide this capability? - CORRECT ANSWERS-FTP
You have a large TCP/IP network and want to keep hosts; real time clock synchronized.
What protocol should you use? - CORRECT ANSWERS-NTP
Which of the following protocol stores e-mail on the mail server and gives users a choice to download mail or keep it on the server? - CORRECT ANSWERS-IMAP4
Which of the following protocols allows hosts to exchange messges to indicate problems with packet delivery? - CORRECT ANSWERS-ICMP
You are asked to recommend an e-mail retrieval protocol for a company's sales team. The sales team needs to access e-mail from various locations and possible different computers. The sales team does not want to worry about transferring e-mail messages or files back and forth between these computer.
Which em-mail protocol was designed for this purpose? - CORRECT ANSWERS-IMAP
Which of the following TCP/IP protocols do e-mail clients use to download messages from a remote mail server? - CORRECT ANSWERS-POP3
What is the basic purpose of the OSI physical layer? - CORRECT ANSWERS-
coordinates rules for transmitting bits.
Which of the following functions are performed at the Physical layer of the OSI model? -
CORRECT ANSWERS-Movement of data across network cables
Which of the following are functions of the MAC sublayer? - CORRECT ANSWERS-
Letting devices on the network have access to the LAN
Defining a unique hardware address for each device on the network