CCNA Discovery 4.0: Working at a Small-to-Medium Business or ISP – Chapter 6 Exam Answers

1)
		
A user types www.cisco.com into a web browser address textbox. What does www.cisco.com represent?
*	the IP address of a web server
	a physical network address
	the closest router interface to the source
	the source IP address in the data transmission

2)

 What type of server would use IMAP?
	DNS
	DHCP
*	e-mail
	FTP
	Telnet
	web

3)	
	
Which type of server would most likely be used first by a network client in a corporate environment?
	DNS
*	DHCP
	e-mail
	FTP
	Telnet
	web

4)
	
Which protocol is used by FTP to transfer files over the Internet?
*	TCP
	SMTP
	UDP
	SNMP

5)	
	
Which protocols are TCP/IP application layer protocols? (Choose two.)
	UDP
*	FTP
	IP
*	SMTP
	TCP 

6)
		
Which of the following are layers of the TCP/IP model? (Choose three.)
*	Application
	Physical
*	Internet
*	Network Access
	Presentation 

7)
	
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.
	TCP provides extra acknowledgements that will ensure smooth video delivery.
	Both TCP and UDP can be used simultaneously to ensure speed and guaranteed delivery.
	Both TCP and UDP may slow transmission and disrupt game operation, so no transport protocol should be used. 

8)
	
Whenever e-mail clients send letters, what device is used to translate the domain names into their associated IP addresses?
	Uniform Resource Locator
	Network redirector server
	SNMP server
*	DNS server

9)
	
Which application is most likely used to translate www.cisco.com to 198.133.219.25?
	DHCP
*	DNS
	FTP
	HTTP
	POP
	SMTP

10)

 Refer to the graphic. Which protocol is used to access this website?
	IM
	FTP
*	HTTP
	SNMP
	VoIP

11)
	
Which port number is used by SMTP?
	20
	21
*	25
	26
	110

12)
	
Which protocol is used by e-mail servers to communicate with each other?
	FTP
	HTTP
	TFTP
*	SMTP
	POP
	SNMP

13)
	
What client software enables logged in users to communicate with other logged in users in real time?
	blog
	e-mail
	web mail
*	instant messaging 

14)
	
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 packet header identifies it as an HTTP or FTP packet.
	The data in the segment is specially formatted for either HTTP or FTP.
*	The segment destination port number identifies the application that should handle it.
	The source port number is associated with one of these well known server applications.

15)
	
What term is used to describe how TCP/IP protocols are layered and interact to format, address, and transmit information across a network?
	protocol hierarchy
	protocol modeling
*	protocol stack
	protocol layering

16)
	
What three items are contained in an Ethernet frame? (Choose three.)
	source IP address
*	source MAC address
	destination IP address
*	destination MAC address
*	error-checking information

17)
	
What information is contained in an IP header?
*	source and destination IP addresses
	source and destination MAC addresses
	only destination IP and MAC addresses
	both source and destination IP and MAC addresses 

18)
	
Cabling issues are associated with which OSI layer?
	4
	2
*	1
	3 

19)
	
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 IP header
	removes the TCP header
	passes data to the application layer
*	removes the Ethernet header and trailer 

20)
		
A client has decoded a frame and started the de-encapsulation process. In which order does the de-encapsulation process occur?
	1) remove IP header
2) remove Ethernet header and trailer
3) remove TCP header
4) pass data to the application

	1) add TCP header to data
2) add an IP header
3) add frame header and trailer
4) encode the frame into bits

*	1) remove Ethernet header and trailer
2) remove IP header
3) remove TCP header
4) pass data to the application

	1) add TCP header to data
2) add Ethernet header and trailer
3) add an IP header
4) encode the frame into bits

21)
		
What is an advantage of the use of layers in the OSI reference model?
	It breaks network communications into larger parts.
	It increases complexity.
*	It prevents changes in one layer from affecting other layers.
	It requires the use of single-vendor equipment for hardware and software communications. 

22)
	
What is the correct order of the layers of the OSI reference model, starting at the lowest layer and working up the model?
	data link, physical, transport, network, presentation, session, application
	physical, data link, network, session, transport, presentation, application
	physical, data link, network, transport, presentation, session, application
*	physical, data link, network, transport, session, presentation, application
	application, session, presentation, transport, data link, network, physical
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About fiki28

Saya tinggal di daerah Mojokerto, jawa timur, Indonesia. Bekerja di sebuah institusi pemerintahan sebagai teknisi komputer dan jaringan
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