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Exam A
QUESTION 1
What are two advantages of Layer 2 Ethernet switches over hubs? (Choose two.)
A. decreasing the number of collision domains
B. filtering frames based on MAC addresses
C. allowing simultaneous frame transmissions
D. increasing the size of broadcast domains
E. increasing the maximum length of UTP cabling between devices
Correct Answer: BC
QUESTION 2
For which type of connection should a straight-through cable be used?
A. switch to switch
B. switch to hub
C. switch to router
D. hub to hub
E. router to PC
Correct Answer: C
QUESTION 3
Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?
A. crossover
B. straight-through
C. rolled
D. shielded twisted-pair
Correct Answer: C
QUESTION 4
What is the first 24 bits in a MAC address called?
A. NIC
B. BIA
C. OUI
D. VAI
Correct Answer: C
QUESTION 5
In an Ethernet network, under what two scenarios can devices transmit? (Choose two.)
A. when they receive a special token
B. when there is a carrier
C. when they detect no other devices are sending
D. when the medium is idle
E. when the server grants access
Correct Answer: CD
Cisco 640-802 tests containing questions that cover all sides of tested subjects that help our members to be prepared and keep high level of professionalism. The main purpose of Cisco 640-802 exam is to provide high quality test that can secure and verify knowledge, give overview of question types and complexity that can be represented on real exam certification
QUESTION 6
Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose
two.)
A. reduces routing table entries
B. auto-negotiation of media rates
C. efficient utilization of MAC addresses
D. dedicated communications between devices
E. ease of management and troubleshooting
Correct Answer: AE
QUESTION 7
When a host transmits data across a network to another host, which process does the data go through?
A. standardization
B. conversion
C. encapsulation
D. synchronization
Correct Answer: C
QUESTION 8
Which two Ethernet fiber-optic modes support distances of greater than 550 meters?
A. 1000BASE-CX
B. 100BASE-FX
C. 1000BASE-LX
D. 1000BASE-SX
E. 1000BASE-ZX
Correct Answer: CE
QUESTION 9
Refer to the exhibit. What type of connection would be supported by the cable diagram shown?
A. PC to router
B. PC to switch
C. server to router
D. router to router
Correct Answer: B
QUESTION 10
Refer to the exhibit. What type of connection would be supported by the cable diagram shown?
A. PC to router
B. PC to switch
C. server to switch
D. switch to router
Correct Answer: A QUESTION 11
Which two topologies are using the correct type of twisted-pair cables? (Choose two.)
Correct Answer: DE
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