Basic Enterprise Network
Architectures
1. (Multiple Choice) Which of the following network
topologies are the widely used backbone network topologies? (Select 2 Answers)
A.Full Mesh
B.Plane Hierarchical
structure
C.Plane and Space
Hierarchical structure
D.Multi-homing structure
2. (Multiple Choice) The metropolitan area network which is
located between backbone network and access network consists of ( ). (Select 3 Answers)
A.Carrier layer
B.Core layer
C.Convergence layer
D.Access layer
3. (Single Choice) In a complete IP network, which of the
following networks does a Layer 2 network under the service access control
point belong to?
A.Backbone network
B.Metropolitan area
network (MAN)
C.Access network
D.Core network
4. (Multiple Choice) When a backbone network uses dual
planes, which of the following statements are true? (Select 2 Answers)
A.When a fault occurs on
one plane, the other plane cannot function as the backup of the faulty plane.
B.The two planes generally
carry different services.
C.In normal situations,
the services on the two planes do not affect each other.
D.Compared with a
dual-plane structure, a hierarchical plane is more reliable.
Enterprise Network
Constructs
1. (Single Choice) Keyboard is used to input
data only. Which of the following is the transmission mode of the
keyboard?
A.Simplex mode
B.Half-duplex mode
C.Full-duplex mode
D.Auto negotiation
2. (Multiple Choice) Which of the following
communication types are defined based on information interaction between the
transmitter and the receiver? (Select 3
Answers)
A.Simplex
B.Half-duplex
C.Duplex
D.Auto-negotiation
3. (Single Choice) Coaxial cables can be classified into different types by
diameter. One of these types of the coaxial cables is suitable for relatively
large LAN because it supports long distance and provides high reliability.
Which of the following coaxial cables belongs to this type?
A.Coaxial cable with a
large diameter
B.Coaxial cable with a
small diameter
C.10-core coaxial cable
D.16-core coaxial cable
4. (Single Choice) A transmission medium consists of glass
fibers and a shield layer. It is free from interference of magnetic signals and
provides high-speed and long-distance transmission. But such a matter is very
expensive. What is this matter?
A.Coaxial cable
B.Twisted pair cable
C.Optical fiber
D.Waveguide fiber
5. (Multiple Choice) Which device operates at physical layer?
A.Switch
B.Hub
C.Router
D.Firewall
6. (Multiple Choice) What are transmission media of physical
layer? (Select 3 Answers)
A.Fiber
B.Twisted pair cable
C.Radio wave
D.Ethernet
7. (Multiple Choice) What are wiring standards for physical
layer related to LAN? (Select 3 Answers)
A.100Base-T
B. HDLC
C.100Base-FX
D.1000Base-SX/LX
8. (Multiple Choice) Which of the following are physical
interfaces? (Select 4 Answers)
A.Dialer interface
B.Voice interface
C.Serial interface
D.Sub interface
E.CE1/PRI interface
F. Virtual interface template
G.. ISDN BRI interface
9. (Single Choice) Which of the following fibers allows for
multiangular incidence of “multiple” beams of light for transmission?
A.4-core fiber
B.“Single”-mode fiber
C.Multimode fiber
D.Active fiber
10. (Single Choice) To improve a twisted pair cable's
capability to withstand magnetic interference, which of the following layers
can be added as a shield layer of the twisted pair cable?
A.STP
B.UTP
C.BTP
D.RPR
