Deck 12: Domain Name System and Transport Layer Protocol

Question 1

The right to use a domain name is delegated by domain name registers which are accredited by                

A)internet architecture board
B)internet society
C)internet research task force
D)internet corporation for assigned names and numbers

Answer 1

internet corporation for assigned names and numbers

Question 2

Which one of the following is not true?

A)multiple hostnames may correspond to a single ip address
B)a single hostname may correspond to many ip addresses
C)a single hostname may correspond to a single ip address
D)none of the mentioned

Answer 2

a single hostname may correspond to a single ip address

Question 3

Simple mail transfer protocol (SMTP) utilizes-------------- as the transport layer protocol for electronic mail transfer.

A)tcp
B)udp
C)dccp
D)sctp

Answer 3

tcp

Question 4

SMTP connections secured by SSL are known as                            

A)smtps
B)ssmtp
C)snmp
D)starttls

Question 5

What is on-demand mail relay (ODMR)?

A)protocol for smtp security
B)an smtp extension
C)protocol for web pages
D)protocol for faster mail transfer

Question 6

An SMTP session may not include

A)zero smtp transaction
B)one smtp transaction
C)more than one smtp transaction
D)one http transaction

Question 7

SMTP defines                

A)message transport
B)message encryption
C)message content
D)message password

Question 8

Which layer is responsible for process-to- process delivery?

A)physical layer
B)network layer
C)transport layer
D)application layer

Question 9

6 INTRODUCTION TO PEER TO PEER NETWORKS

A)client/server
B)source/destination
C)message transfer
D)peer to peer

Question 10

Multiple processes on destinations at transport layer are identified by                      

A)mac address
B)port number
C)host number
D)host address

Question 11

According to Internet Assigned Numbers Authority (IANA), which of the following ranges is not a part of port number ranges?

A)well-known ports
B)registered ports
C)dynamic ports
D)static ports

Question 12

The combination of an IP address and port number is called as                  

A)socket address
B)port address
C)mac address
D)host address

Question 13

Which of the following is false with respect to Connectionless service of transport layer protocol?

A)packets are not numbered
B)packets are not delayed
C)no acknowledgement
D)packet may arrive out of sequence

Question 14

In transport layer, Multiplexing is done at

A)channel
B)receiver site
C)sender site
D)packet

Question 15

The process of error checking and dropping of the header, delivering messages to appropriate process based on port number is called as                

A)delivery of packets
B)error correction
C)multiplexing
D)demultiplexing

Question 16

Number of phases in the handshaking protocol?

A)2
B)3
C)4
D)5

Question 17

In the SSL record protocol operation pad_2 is -

A)is the byte 0x36 repeated 40 times for md5
B)is the byte 0x5c repeated 48 times for md5
C)is the byte 0x5c repeated 48 times for sha-1
D)is the byte 0x36 repeated 48 times for md5

Question 18

In the SSL record protocol operation pad_1 is -

A)is the byte 0x36 repeated 40 times for md5
B)is the byte 0x5c repeated 40 times for md5
C)is the byte 0x5c repeated 48 times for sha-1
D)is the byte 0x36 repeated 48 times for md5

Question 19

In the Handshake protocol action, which is the last step of the Phase 2 : Server Authentication and Key Exchange?

A)server_done
B)server_key_exchange
C)certificate_request
D)crtificate_verify

Question 20

Which is the key exchange algorithm used in CipherSuite parameter?

A)rsa
B)fixed diffie-hellman
C)ephemeral diffie-hellman
D)any of the mentioned

Question 21

In the Phase 2 of the Handshake Protocol Action, the step server_key_exchange is not needed for which of the following cipher systems?

A)fortezza
B)anonymous diffie-hellman
C)fixed diffie-hellman
D)rsa