Chapter 6: Networking Fundamentals Exam questions & study Guide –
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D
1 ________ is immune to
1. D. Companies that want to ensure the safety and
electromagnetic or radio-
integrity of their data should use fiberoptic
frequency interference.
A. Twisted-pair cabling cable because it cannot be affected by electromagnetic
B. CSMA/CD or radio-frequency interference.
C. Broadband coaxial cabling Even though some copper cables have shielding, they
D. Fiber-optic cabling are not immune to EMI or RFI. This eliminates twisted-
pair and coaxial. CSMA/CD is an access method, not a
cable type.
2. Which IEEE 802 standard C
defines a bus topology 2. C. The IEEE 802.3 standard originally specified the
using coaxial baseband use of a bus topology with coaxial
baseband cable and can transmit data up to 10Mbps.
cable and is able
to transmit at 10Mbps?
A. 802.1
B. 802.2
C. 802.3
D. 802.5
3. Which OSI layer signals C
"all clear" by making sure 3. C. It is the responsibility of the Transport layer to
the data segments are signal an "all clear" by making sure the
error free? data segments are error free. It also controls the data
A. Application layer flow and troubleshoots any problems
B. Session layer with transmitting or receiving data frames.
C. Transport layer
D. Network layer
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4 ________ is the type of B
media access 4. B. Carrier Sense Multiple Access with Collision
method used by NICs that Detection (CSMA/CD) specifies that the
listen to or sense NIC pause before transmitting a packet to ensure that
the cable to check for traffic the line is not being used. If no activity
and send only when they is detected, then it transmits the packet. If activity is detected, it
waits until it is clear.
hear that no one else is
In
transmitting.
the case of two NICs transmitting at the same time (a
A. Token passing
B. CSMA/CD
collision), both NICs pause to detect
and then retransmit the data.
C. CSMA/CA
D. Demand priority
5. What model is used A
to provide a common 5. A. The Open Systems Interconnection (OSI) model is
way to describe used to describe how network protocols
network protocols? should function. The OSI model was designed by the
A. OSI International Organization for Standardization (ISO).
B. ISO
C. IEEE
D. CSMA/CD
6. A physical star D
topology consists of 6. D. At the center of a star topology is a hub or a
several workstations that switch. A NIC is a network card, which
branch off a central each computer must have to be on the network. Bridges
device and routers are higher-level connectivity
called a _____ _ . devices that connect network segments or networks together.
A. NIC
B. Bridge
C. Router
D. Hub
Of all network cabling
7. C
options, 7. C. Fiber-optic cable can span distances of several
_ ______ offers the longest kilometers because it has much lower
possible attenuation, crosstalk, and interference in comparison to copper
segm cables.
ent
lengt
h.
A. Unshielded twisted-pair
B. Coaxial
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