1. Which options are properties of contention-based media
access for a shared media? (Choose three.)
non-deterministic
less overhead
collisions exist
2. What is a primary purpose of encapsulating packets into
frames?
facilitate the entry and exit of data on media
3. Refer to the exhibit. How many unique CRC calculations
will take place as traffic routes from the PC to the laptop?
8
4. What is true concerning physical and logical topologies?
Logical topologies consist of virtual connections between
nodes.
5. Refer to the exhibit. Assuming that the network in the
exhibit is converged meaning the routing tables and ARP tables are complete,
which MAC address will Host A place in the destination address field of
Ethernet frames destined for http://www.server/?
00-0c-85-cf-65-c0
6. What are three characteristics of valid Ethernet Layer 2
addresses? (Choose three.)
They are 48 binary bits in length.
They are considered physical addresses.
They are generally represented in hexadecimal format.
7. Refer to the exhibit. A frame is being sent from the PC
to the laptop. Which source MAC and IP addresses will be included in the frame
as it leaves RouterB? (Choose two.)
source MAC – Fa0/1 on RouterB
source IP – PC
8. What determines the method of media access control?
(Choose two.)
media sharing
logical topology
9. What is the purpose of the preamble in an Ethernet frame?
is used for timing synchronization with alternating patterns
of ones and zeros
10. What statements are true regarding addresses found at
each layer of the OSI model? (Choose two.)
Layer 2 may identify devices by a physical address burned
into the network card
Layer 3 represents a hierarchical addressing scheme
11. Which statements describe the logical token-passing
topology? (Choose two.)
Computers are allowed to transmit data only when they
possess a token.
Electronic tokens are passed sequentially to each other.
12. Which sublayer of the data link layer prepares a signal
to be transmitted at the physical layer?
MAC
13. What is true regarding media access control? (Choose
three.)
Ethernet utilizes CSMA/CD
defined as placement of data frames on the media
Data Link layer protocols define the rules for access to
different media
14. What is a characteristic of a logical point-to-point
topology?
The media access control protocol can be very simple.
15. What two facts are true when a device is moved from one
network or subnet to another? (Choose two.)
The device will still operate at the same Layer 2 address.
The Layer 3 address must be reassigned to allow
communications to the new network.
16. What is a function of the data link layer?
provides for the exchange data over a common local media
17. Which three factors should be considered when
implementing a Layer 2 protocol in a network? (Choose three.)
the geographic scope of the network
the physical layer implementation
the number of hosts to be interconnected
18. What is the primary purpose of the trailer in a data
link layer frame?
support frame error detection
19. A network administrator has been asked to provide a
graphic representation of exactly where the company network wiring and
equipment are located in the building. What is this type of drawing?
physical topology
20. Refer to the exhibit. Which statement describes the
media access control methods that are used by the networks in the exhibit?
Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.
CCNA 1 Chapter 7 Answers |
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