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WorksheetsNet+ 3.1 Questions
Total questions: 26
Worksheet time: 13mins
What is the primary function of a Network Interface Card (NIC)?
To store data
To connect a host to the transmission medium
To process data
To display graphics.
A Network Interface Card (NIC) can support multiple ports on the same card. This allows either connections to different networks or ________ the separate links into a higher bandwidth channel.
separating
aggregating
deleting
copying
What is a MAC address also known as?
Ethernet address
Internet Protocol address
Subnet mask
Gateway address
Each Ethernet network interface port has a unique hardware address known as the ______.
IP address
MAC address
Subnet mask
Gateway address
What type of connectors do Small form-factor pluggable (SFP) transceivers use?
SC connectors
LC connectors
ST connectors
MTP connectors
Fill in the blank: Enhanced SFP (SFP+) is an updated specification to support ___ GbE but still uses the LC form factor.
1
10
100
1000
What does QSFP stand for?
Quad small form-factor pluggable
Quick small form-factor pluggable
Quad single form-factor pluggable
Quick single form-factor pluggable
QSFP+ is typically used with ________ termination.
single-fiber push-on (SPO)
multi-fiber push-on (MPO)
dual-fiber push-on (DPO)
quad-fiber push-on (QPO)
What is the main reason for checking the manufacturer's documentation for transceivers?
To ensure the correct fiber type is used
To find the cheapest option
To match the color of the cables
To increase the length of the cables.
Fill in the blank: Wavelength Division Multiplexing uses either a single bidirectional strand or dual unidirectional strands to implement multiple channels, distinguished by ________.
wavelengths
colors
lengths
costs
What is the typical loss for a single mode fiber in terms of attenuation?
0.1 dB/km
0.4 dB/km
0.8 dB/km
1.2 dB/km
Fill in the blank: The loss budget must be less than the ______ budget.
Power
Signal
Transmission
Frequency
What is the minimum signal margin recommended in variable conditions?
3 dB
5 dB
7 dB
10 dB
In a datacenter where conditions are less variable, a lower margin might be ______.
acceptable
unacceptable
mandatory
prohibited
What is the purpose of the preamble in an Ethernet frame?
To indicate the type of protocol
For clock synchronization and collision detection
To calculate the checksum
To identify the source MAC address.
The EtherType field in an Ethernet frame is used to indicate the ______.
source MAC address
type of protocol in the payload
frame check sequence
destination MAC address
What is the role of CRC in error checking protocols?
To ensure complete accuracy
To detect damage
To retransmit data
To operate at higher layers.
The CRC is not completely accurate at detecting damage; these are functions of error checking in protocols operating at ________.
Lower layers
Higher layers
Middle layers
All layers
What is the typical format of a Media Access Control (MAC) address?
Six groups of two hexadecimal digits separated by colons
Three groups of four hex digits separated by periods
Both A and B
None of the above.
Fill in the blank: The first six hex digits of a MAC address are known as the ________.
Serial number
Organizationally unique identifier (OUI)
Network identifier
Local address
What does the I/G bit of a MAC address determine?
Whether the frame is addressed to an individual node or a group
The speed of the transmission
The type of protocol used
The length of the frame.
A MAC address consisting entirely of 1s is the ________ address.
A) Unicast
B) Multicast
C) Broadcast
D) Local
select the correct statements for MAC address
Each time when computer is connected to network, it may get a new MAC address.
MAC address is given at the point of manufacture
Length of MAC address is 32 bits
2e:ad:1a:0f:22:eb is a valid MAC address.
On which device MAC address present
MAC address follows which number system
