1. The original ARPANET was a packet-switched network.
a. True
b. False
ANSWER: True
2. The entire IPv6 address space is now occupied.
a. True
b. False
ANSWER: False
3. A divide and conquer approach permits concerns related to networking hardware to be
completely separated from those related to networking software.
a. True
b. False
ANSWER: True
4. For each network reference model layer, the software handles packages of data, which
are called packet defined units.
a. True
b. False
ANSWER: False
5. The Session layer is equipped to request retransmission of all erroneous or missing
PDUs when reassembly is underway, so that it can guarantee reliable delivery of data
from sender to receiver.
a. True
b. False
ANSWER: False
,6. Which term refers to a single logical network composed of multiple physical networks,
which may all be at a single physical location, or spread among multiple physical
locations?
a. internetwork
b. session
c. connection-oriented
d. checksum
ANSWER: a
7. Which organization is responsible for creating and managing RFCs, in which the rules
and formats for all related protocols and services are described?
a. ICANN
b. Internet Engineering Task Force
c. Internet Architecture Board
d. Internet Society
ANSWER: b
8. Which OSI model layer handles the conversion of outgoing data from bits that
computers use in the signals that networks use?
a. Data Link
b. Physical
c. Network
d. Presentation
ANSWER: b
9. Which layer of the OSI model works with frames?
a. Data Link
, b. Physical
c. Network
d. Presentation
ANSWER: a
10. Which of the following is a task handled at the Network layer?
a. recognizes and uses multiple routes
b. manages point-to-point transmission across the networking medium
c. ensures reliable end-to-end transmission of PDUs
d. maintains ongoing communications between a sender and a receiver
ANSWER: a
11. Which layer includes the physical transmission medium (cables or wireless media)
that any network must use to send and receive the signals that constitute the physical
expression of networked communications?
a. Data Link
b. Physical
c. Network
d. Transport
ANSWER: b
12. Which layer enables reliable transmission of data through the Physical layer at the
sending end, and checks such reliability upon reception at the receiving end?
a. Data Link layer
b. Physical layer
c. Network layer
, d. Presentation layer
ANSWER: a
13. In which layer are notions of network location addressed and the intricacies of
directing a PDU from sender to receiver handled?
a. Data Link layer
b. Application layer
c. Network layer
d. Transport layer
ANSWER: c
14. In which layer are ongoing communications between a sender and a receiver set up,
maintained, and then terminated, or torn down, as needed?
a. Session layer
b. Physical layer
c. Network layer
d. Presentation layer
ANSWER: a
15. Which layer manages the way data is presented to the network (on its way down the
protocol stack), and to a specific machine/application combination (on its way up the
protocol stack)?
a. Session
b. Physical
c. Network
d. Presentation
ANSWER: d
a. True
b. False
ANSWER: True
2. The entire IPv6 address space is now occupied.
a. True
b. False
ANSWER: False
3. A divide and conquer approach permits concerns related to networking hardware to be
completely separated from those related to networking software.
a. True
b. False
ANSWER: True
4. For each network reference model layer, the software handles packages of data, which
are called packet defined units.
a. True
b. False
ANSWER: False
5. The Session layer is equipped to request retransmission of all erroneous or missing
PDUs when reassembly is underway, so that it can guarantee reliable delivery of data
from sender to receiver.
a. True
b. False
ANSWER: False
,6. Which term refers to a single logical network composed of multiple physical networks,
which may all be at a single physical location, or spread among multiple physical
locations?
a. internetwork
b. session
c. connection-oriented
d. checksum
ANSWER: a
7. Which organization is responsible for creating and managing RFCs, in which the rules
and formats for all related protocols and services are described?
a. ICANN
b. Internet Engineering Task Force
c. Internet Architecture Board
d. Internet Society
ANSWER: b
8. Which OSI model layer handles the conversion of outgoing data from bits that
computers use in the signals that networks use?
a. Data Link
b. Physical
c. Network
d. Presentation
ANSWER: b
9. Which layer of the OSI model works with frames?
a. Data Link
, b. Physical
c. Network
d. Presentation
ANSWER: a
10. Which of the following is a task handled at the Network layer?
a. recognizes and uses multiple routes
b. manages point-to-point transmission across the networking medium
c. ensures reliable end-to-end transmission of PDUs
d. maintains ongoing communications between a sender and a receiver
ANSWER: a
11. Which layer includes the physical transmission medium (cables or wireless media)
that any network must use to send and receive the signals that constitute the physical
expression of networked communications?
a. Data Link
b. Physical
c. Network
d. Transport
ANSWER: b
12. Which layer enables reliable transmission of data through the Physical layer at the
sending end, and checks such reliability upon reception at the receiving end?
a. Data Link layer
b. Physical layer
c. Network layer
, d. Presentation layer
ANSWER: a
13. In which layer are notions of network location addressed and the intricacies of
directing a PDU from sender to receiver handled?
a. Data Link layer
b. Application layer
c. Network layer
d. Transport layer
ANSWER: c
14. In which layer are ongoing communications between a sender and a receiver set up,
maintained, and then terminated, or torn down, as needed?
a. Session layer
b. Physical layer
c. Network layer
d. Presentation layer
ANSWER: a
15. Which layer manages the way data is presented to the network (on its way down the
protocol stack), and to a specific machine/application combination (on its way up the
protocol stack)?
a. Session
b. Physical
c. Network
d. Presentation
ANSWER: d
