This layer of the OSI model is responsible for dialog control, token management, and synchronization.
a. session
b. transport
c. network
d. data link
Question 2
What is the typical method for restricting packet lifetime on the Internet?
a. Packet length
b. Network path
c. Packet size
d. Hop count
Question 3
Can a machine with a single DNS name have multiple IP addresses?
a. true
b. false
Question 4
If a local DNS server cannot find an IP address for a specified URL, what does it do?
a. Queries the next DNS server
b. Returns an error 4xx to the client requesting the resource
c. Performs a reverse lookup of the authoritative record
d. Performs an iterative query of the local DNS server's database
Question 5
What is the default protocol used for sending email messages over the Internet?
a. SNMP
b. SMTP
c. POP
d. RSVP
Question 6
Which protocol is used to send web pages from web servers to internet browsers?
a. HTML
b. SMTP
c. HTTP
d. WAP
Question 7
This mail system protocol was created as an improvement of the POP3 protocol, and has the ability to address mail not by message number, but by using attributes.
a. SMTP
b. MIME
c. SNMP
d. IMAP
Question 8
What is the primary purpose of a Socket primitive?
a. To associate a local address with a port
b. To create a communication endpoint
c. To address a communication endpoint
d. To set up a connection with a host
Question 9
Which protocol uses a three-way handshake to establish connections?
a. TCP
b. UDP
c. ICMP
d. IP
Question 10
What is the primary purpose of flow control?
a. Error control
b. Traffic control
c. Flow control
d. System control