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» » » » DHomesb Chapter 6 - CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)

1  
What is the correct order of the layers of the OSI reference model, starting at the lowest layer and working up the model?
    #physical, data link, network, transport, session, presentation, application
  
2   
What three items are contained in an Ethernet header and trailer? (Choose three.)
    #source MAC address
    #destination MAC address
    #error-checking information

3   
Which protocols are TCP/IP application layer protocols? (Choose two.)
    #FTP
    #SMTP
   
4   

Refer to the graphic. Which protocol is used to access this website?
    #HTTP
   
5   
What is an advantage of the use of layers in the OSI reference model?
    #It prevents changes in one layer from affecting other layers.
   
6   
What term is used to describe how TCP/IP protocols are layered and interact to format, address, and transmit information across a network?
    #protocol stack
   
7   
Whenever e-mail clients send letters, what device is used to translate the domain names into their associated IP addresses?
    #DNS server

8   
An Internet server is running both FTP and HTTP services. How does the server know which of these applications should handle an incoming segment?
    #The segment destination port number identifies the application that should handle it.
   
9   
You are creating a network-based video game. What influences your decision about which transport protocol to use for the application?
    #UDP will not disrupt the game to retransmit dropped packets.
   
10   
Which port number is used by SMTP?
    #25
   
11   
Which application is most likely used to translate www.cisco.com to 198.133.219.25?
    #DNS
   
12   
Which of the following are layers of the TCP/IP model? (Choose three.)
    #Application
    #Internet
    #Network Access
   
13   
Which protocol is used by e-mail servers to communicate with each other?
    #SMTP
   
14   
What client software enables logged in users to communicate with other logged in users in real time?
    #instant messaging

15   
What type of server would use IMAP?
    #e-mail

16   
What resolves a website URL to an IP address?
    #DNS server
   
17   
What information is contained in an IP header?
    #source and destination IP addresses
   
18   
Which protocol is used by FTP to transfer files over the Internet?
    #TCP
   
19   
A client has decoded a frame and started the de-encapsulation process. In which order does the de-encapsulation process occur?
   
    1) remove Ethernet header and trailer
    2) remove IP header
    3) remove TCP header
    4) pass data to the application

   

20   
A device receives an Ethernet frame and recognizes the MAC address as its own. What does the device do to the message to get to the encapsulated data?
    #removes the Ethernet header and trailer

21   
Cabling issues are associated with which OSI layer?
    #1
   
22   
A network client in a corporate environment reboots. Which type of server would most likely be used first?
    #DNS

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4 comments:

  1. A network client in a corporate environment reboots. Which type of server would most likely be used first?
    Should be DHCP, not DNS

    ReplyDelete
  2. Which protocols are TCP/IP application layer protocols?

    ftp
    tcp

    ReplyDelete
  3. Which protocols are TCP/IP application layer protocols?

    actually it's
    ftp
    smtp

    ReplyDelete
  4. A network administrator needs to allow web pages on the company web server to be accessed securely. What port number is used to request web content to be transmitted using a secure protocol?

    ReplyDelete

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