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WorksheetsNet+ 3.4 Questions
Total questions: 31
Worksheet time: 16mins
What is a common cause of network power issues?
Overheating
Power surges
Dust accumulation
Software bugs
When troubleshooting a network adapter, you should first verify that the ______ is working correctly.
power supply
driver
cooling fan
network cable
Which type of network cable is known for its high-speed data transmission and is commonly used in modern Ethernet networks?
Coaxial Cable
Fiber Optic Cable
Twisted Pair Cable
USB Cable
Fill in the blank: The _______ cable is often used for cable television and internet connections due to its ability to carry high-frequency signals.
Coaxial
Fiber Optic
Twisted Pair
HDMI
What does a solid green LED indicate on a switch port?
The link is connected, but there is no traffic.
The link is operating normally.
The link is not working.
A fault has been detected.
Fill in the blank: A blinking amber LED on a switch port indicates that a fault has been detected, such as a ________ mismatch.
speed
duplex
color
protocol
Which command is used to display the switch's configuration?
show config
show interface
show startup-config
show running-config
The command 'show interface' lists the state of all interfaces. It reports configuration details and traffic statistics if the link is ____.
down/down
up/up
up/down
down/up
What is the hardware address of the GigabitEthernet0/1 interface?
0001.6487.9619
0001.6487.9620
0001.6487.9618
0001.6487.9621
Fill in the blank: The bandwidth of the interface is ________ Kbit.
1000000
100000
10000
1000
What is the likely cause if an interface is in the 'Down/down' state?
No host is attached
The interface is administratively down
There is a port security violation
The channel has not been negotiated.
Fill in the blank: If an interface is 'Administratively down/down', it means the interface has been disabled using the _______ command.
shutdown
no shutdown
etherchannel
spanning-tree
What is the purpose of interface counters?
To measure the speed of data transfer
To record the number of events over time
To increase the bandwidth
To decrease latency
A cyclic redundancy check (CRC) error is usually caused by ______.
High bandwidth
Interference
Low latency
High throughput
What is a giant frame?
A frame larger than 1518 bytes
A frame smaller than 1518 bytes
A frame exactly 1518 bytes
A frame larger than 1600 bytes.
A trunk link carries traffic between switches or between a switch and a router. If one switch interface is configured for 802.1Q framing, but the other is not, the frames will appear too large to the receiver. This is because 802.1Q adds ___ bytes to the header.
2
4
6
8
What is the purpose of a MAC address table in a network switch?
To store IP addresses
To map MAC addresses to ports
To store user credentials
To manage network traffic.
Fill in the blank: A MAC address table is also known as a ______ table.
IP
CAM
Routing
DNS
What is the purpose of displaying dynamic entries in the MAC address table of a Cisco switch?
To monitor network traffic
To configure IP addresses
To enhance security
To update firmware
In a Cisco switch, the MAC address table is used to store ______ entries.
Static
Dynamic
Temporary
Permanent
What is a network loop?
A single path for data to travel
Flooded frames circulating the network perpetually
A direct connection between two devices
A secure network protocol.
A broadcast storm can cause network utilization to go to near maximum capacity and the CPU utilization of the switches to jump to ____.
50%
60%
70%
80% or more
What type of cabling is typically recommended for PoE+ to improve thermal performance?
Cat 5
Cat 5e
Cat 6
Cat 6A
Fill in the blank: A switch's total power budget for all ports is typically around ______ watts.
100-200
200-300
300-400
400-500
What is the power consumption in watts for interface Fa0/1?
0.0
10.0
15.4
3.0
Fill in the blank: The actual power consumption can fluctuate quite widely. For example, a camera with pan-tilt-zoom controls will use more power when its motor is ____.
inactive
active
broken
removed
A customer is having issues accessing local resources on the network. A technician questions the user and discovers that a small switch had been taken out of storage and installed so that additional devices could be connected in the room. The technician runs the ping command from the PC to the network server and does not find any issues. However, data transfers to the server are slow, and the transfer appears to be locked up at times. Which of the following is the most likely cause of the issue?
Duplexing mismatch
Reversed TX/RX pinouts
Cable crosstalk
Failed transceiver
What is a characteristic of an unmanaged switch?
It can be configured via a command-line interface.
It has multiple IP addresses assigned to it.
It provides plug-and-play capability with minimal configuration options.
It is capable of interpreting layer 3 data.
Which of the following best describes the purpose of a firewall in a computer network?
To speed up network traffic
To provide additional storage for network resources
To protect the network from unauthorized access
To manage the allocation of IP addresses
What is the purpose of disabling unused physical and virtual ports on network switches and devices?
To increase the number of available ports
To reduce power consumption
To enhance network security by minimizing vulnerabilities
To improve the speed of the network
