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07 CCNA7 Module 5-7 - Ethernet Flashcards | StudBud
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07 CCNA7 Module 5-7 - Ethernet
07 CCNA7 Module 5-7 - Ethernet
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Cisco ITN Module 5-7: Ethernet #cisco #ethernet#ITN#7
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
Which of the following is NOT a basic part common to all frames?
data
type
trailer
header
2
What destination MAC address will be assigned to a packet as it leaves the web server going to PC1?
00-60-2F-3A-07-DD
00-60-2F-3A-07-CC
00-60-2F-3A-07-AA
00-60-2F-3A-07-BB
3
What are two examples of the cut-through switching method?
CRC switching / fast-forward
fragment-free / fast-forward
store-and-forward / fragment-free
QOS switching / port-based
4
How many BYTES are in a MAC address?
6
48
24
12
5
What is contained in the trailer of a data-link frame?
logical address
error detection
physical address
data
6
Which of the following is NOT a way that media access control is used in networking?
Data link layer protocols define the rules for access to different media
802.11 utilizes CSMA/CD.
Ethernet utilizes CSMA/CD
Media access control provides placement of data frames onto the media.
7
What type of communication rule would best describe CSMA/CD?
flow control
access method
message encoding
message encapsulation
8
Which of the following is an advantage of cut-thorough switching over store-and-forward?
lower latency
faster forwarding decision based on the source MAC address
supports more Ethernet sppeds
fewer errors
9
Which address is recorded in the CAM table?
Source MAC
Source IP
Destination MAC
Destination IP
10
What does a multicast MAC address start with?
FF-FF-FF
F0.00.F0
01-00-5E
88.88.88
11
When two new switches are connected what mode will they operate in?
Half-Duplex
Auto-Exec
Enable
Full-Duplex
12
The Ethernet _____ sub-layer is responsible for communicating directly with the physical layer.
CHEESE
MAC
LLC
HAM
13
What is a characteristic of the LLC sublayer?
defines software processes that provide services to the physical layer
adds information to allow mulitple layer 3 protocols to access media
provides the logical addressing
provides delimitation of data according to the physical signaling
14
What are the 2 Sub Layers of the Data Link Layer?
IP and MAC
LLC and MAC
ARP and MAC
MAC and Cheese
15
What do the first six hex characters in a MAC address represent?
DAD
ID
DUI
OUI
16
Which switching method checks the CRC value of a frame?
Fragment-Free
Store-and-Forward
Fast-Forward
Cut-through
17
What type of address is FF-FF-FF-FF-FF-FF?
Multicast IP
Unicast MAC
Broadcast MAC
Multicast MAC
18
Which two statements describe the services provided by the data link layer?
It provides reliable delivery through link establishment and flow control
It defines the end-to-end delivery addressing scheme
ensures that application data will be transmitted by priority
It manages the access of frames to the network media
19
What is the maximum frame size?
128 bytes
1518 bytes
1024 bytes
64 bytes
20
Which topology provides high availability and connects some, but not all, remote sites?
Partial Mesh
MESH
PPP
Hub and Spoke
21
What happens when a device receives a runt frame?
It is sent back to the gateway
It gets re-broadcast
Nothing
It is dropped
22
The ____________field in a frame is used to detect any errors in the transmission and receipt of a frame.
FCS
LLC
MAC
CRC
23
Wireless networks use ___________ as the access method.
OSI/CA
CSMA/CD
PVC/CA
CSMA/CA
24
What is a function performed at the MAC sublayer of the OSI data link layer?
Communicates between the networking software at the upper layers
Adds Layer 2 control information to network protocol data
Enables IPv4 and IPv6 to utilize the same network interface
Provides synchronization between source and target nodes
25
Which media communication type does not require media arbitration in the data link layer?
deterministic
half-duplex
controlled access
full-duplex
26
What does AUTO-MDIX do?
Allows for a reduction in the use of cables
Allows cables to plug into any port
Allows packets to flow on any wire
detects Ethernet cable type
27
Which memory buffering method should be used for whan a 1 Gb port is connected to a 100Mb port.
shared memory buffering
port-based buffering
fixed configuration buffering
level 1 cache buffering
28
What action will occur if a switch receives a frame and does have the source MAC address in the MAC table?
The switch shares the MAC address table entry with any connected switches.
The switch refreshes the timer on that entry
The switch sends the frame to a connected router
The switch does not forward the frame
29
Which statement describes a characteristic of the frame header fields of the data link layer?
They all include the flow control and logical connection fields
They vary depending on protocols
The frame header fields contain Layer 3 source and destination addresses
They include information on user applications
30
What is a function performed at the MAC sublayer of the OSI data link layer?
Enables IPv4 and IPv6 to utilize the same network interface
Adds Layer 2 control information to network protocol data.
Integrates various physical technologies
Communicates between the networking software at the upper layers
