Q. What is the purpose of the IPv6 flow label field?
A.
To identify the source of the packet
B.
To prioritize packets for quality of service
C.
To indicate the destination address
D.
To provide error detection
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Solution
The flow label field in an IPv6 header is used to identify packets that require special handling, such as for quality of service (QoS) purposes.
Correct Answer:
B
— To prioritize packets for quality of service
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Q. What is the purpose of the IPv6 flow label field?
A.
To identify the source of the packet
B.
To prioritize packets for quality of service
C.
To indicate the destination address
D.
To provide error detection
Show solution
Solution
The flow label field in an IPv6 header is used to identify packets that require special handling, such as for quality of service (QoS) purposes.
Correct Answer:
B
— To prioritize packets for quality of service
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Q. What is the purpose of the IPv6 flow label field?
A.
To identify the source of the packet
B.
To prioritize packets for quality of service
C.
To indicate the destination address
D.
To provide error detection
Show solution
Solution
The flow label field in an IPv6 header is used to identify packets that require special handling, such as for quality of service (QoS) purposes.
Correct Answer:
B
— To prioritize packets for quality of service
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Q. What is the purpose of the IPv6 header's 'Next Header' field?
A.
To indicate the type of the next layer protocol
B.
To specify the source address
C.
To define the destination address
D.
To manage fragmentation
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Solution
The 'Next Header' field in the IPv6 header indicates the type of the next layer protocol, similar to the Protocol field in IPv4.
Correct Answer:
A
— To indicate the type of the next layer protocol
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Q. What is the purpose of the IPv6 header?
A.
To encapsulate data for transmission
B.
To provide error detection
C.
To manage routing information
D.
To define the maximum transmission unit
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Solution
The IPv6 header encapsulates data for transmission across networks, containing essential information for routing and delivery.
Correct Answer:
A
— To encapsulate data for transmission
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Q. What is the purpose of the IPv6 link-local address?
A.
To communicate with devices on the same local network
B.
To route packets across the internet
C.
To provide a unique global address
D.
To facilitate NAT operations
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Solution
IPv6 link-local addresses are used for communication between nodes on the same local network segment and are not routable beyond that segment.
Correct Answer:
A
— To communicate with devices on the same local network
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Q. What is the purpose of the IPv6 link-local address?
A.
To communicate with devices on the same local network
B.
To route packets across the internet
C.
To provide a unique global address
D.
To facilitate NAT operations
Show solution
Solution
IPv6 link-local addresses are used for communication between nodes on the same local network segment and are not routable beyond that segment.
Correct Answer:
A
— To communicate with devices on the same local network
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Q. What is the purpose of the IPv6 link-local address?
A.
To communicate with devices on the same local network
B.
To route packets across the internet
C.
To provide a unique global address
D.
To facilitate NAT operations
Show solution
Solution
IPv6 link-local addresses are used for communication between nodes on the same local network segment and are not routable beyond that segment.
Correct Answer:
A
— To communicate with devices on the same local network
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Q. What is the purpose of the offset null terminals in an operational amplifier?
A.
To adjust the gain
B.
To eliminate noise
C.
To nullify the output voltage when inputs are shorted
D.
To increase bandwidth
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Solution
The offset null terminals are used to nullify the output voltage when the inputs are shorted, correcting for any offset voltage.
Correct Answer:
C
— To nullify the output voltage when inputs are shorted
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Q. What is the purpose of the SSID in a wireless network?
A.
To encrypt the data
B.
To identify the network
C.
To assign IP addresses
D.
To manage bandwidth
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Solution
The SSID (Service Set Identifier) is used to identify a wireless network, allowing devices to connect to the correct network.
Correct Answer:
B
— To identify the network
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Q. What is the purpose of using VLANs in network security?
A.
To increase network speed
B.
To segment network traffic and enhance security
C.
To provide redundancy
D.
To manage IP addresses
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Solution
VLANs (Virtual Local Area Networks) are used to segment network traffic, enhancing security by isolating different network segments.
Correct Answer:
B
— To segment network traffic and enhance security
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Q. What is the purpose of windowing in digital signal processing?
A.
To increase the sampling rate
B.
To reduce spectral leakage
C.
To amplify the signal
D.
To convert signals to the time domain
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Solution
Windowing is used to reduce spectral leakage when performing a Fourier transform by tapering the edges of the signal.
Correct Answer:
B
— To reduce spectral leakage
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Q. What is the relationship between primary and secondary voltage in a transformer?
A.
V1/V2 = N1/N2
B.
V1/V2 = N2/N1
C.
V1 + V2 = N1 + N2
D.
V1 - V2 = N1 - N2
Show solution
Solution
The relationship between primary and secondary voltage is given by V1/V2 = N1/N2, where N is the number of turns.
Correct Answer:
A
— V1/V2 = N1/N2
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Q. What is the resonance frequency in an RLC circuit?
A.
The frequency at which impedance is minimized
B.
The frequency at which current is maximized
C.
The frequency at which energy is stored
D.
The frequency at which voltage is minimized
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Solution
The resonance frequency is the frequency at which the impedance of the circuit is minimized, allowing maximum current flow.
Correct Answer:
A
— The frequency at which impedance is minimized
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Q. What is the response of an RC circuit to a step input?
A.
Exponential decay
B.
Linear decay
C.
Exponential rise
D.
Sinusoidal response
Show solution
Solution
The response of an RC circuit to a step input is an exponential rise towards the final voltage level.
Correct Answer:
C
— Exponential rise
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Q. What is the response of an underdamped second-order system to a step input?
A.
Exponential decay
B.
Oscillatory decay
C.
Constant value
D.
Linear increase
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Solution
An underdamped second-order system exhibits an oscillatory decay in response to a step input, characterized by oscillations that gradually decrease in amplitude.
Correct Answer:
B
— Oscillatory decay
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Q. What is the result of adding two binary numbers 1011 and 1101?
A.
11000
B.
10100
C.
10010
D.
11110
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Solution
1011 + 1101 = 11000 in binary.
Correct Answer:
A
— 11000
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Q. What is the result of applying the first normal form (1NF) to a table?
A.
All attributes are atomic
B.
No transitive dependencies exist
C.
All non-key attributes are dependent on the primary key
D.
The table has no duplicate rows
Show solution
Solution
Applying the first normal form (1NF) ensures that all attributes in a table are atomic, meaning they cannot be divided further.
Correct Answer:
A
— All attributes are atomic
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Q. What is the result of converting the binary number 1010 to decimal?
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Solution
The binary number 1010 converts to decimal 10.
Correct Answer:
A
— 10
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Q. What is the result of converting the binary number 10101 to decimal?
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Solution
10101 in binary equals 1*2^4 + 0*2^3 + 1*2^2 + 0*2^1 + 1*2^0 = 21.
Correct Answer:
A
— 21
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Q. What is the result of the binary operation 1010 - 0110?
A.
0010
B.
0100
C.
1000
D.
0000
Show solution
Solution
1010 - 0110 = 0010 in binary.
Correct Answer:
A
— 0010
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Q. What is the result of the binary operation 1010 AND 1100?
A.
1000
B.
1010
C.
1100
D.
1110
Show solution
Solution
The AND operation between 1010 and 1100 results in 1000.
Correct Answer:
A
— 1000
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Q. What is the result of the binary subtraction 1100 - 1010?
A.
0010
B.
0100
C.
0110
D.
1000
Show solution
Solution
The binary subtraction 1100 (12 in decimal) - 1010 (10 in decimal) results in 0010 (2 in decimal).
Correct Answer:
A
— 0010
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Q. What is the result of the expression (A OR B) AND (A OR NOT B)?
A.
A
B.
B
C.
A OR B
D.
A AND B
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Solution
The expression simplifies to A, as it covers all cases where A is true.
Correct Answer:
A
— A
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Q. What is the result of the expression A + A' in Boolean algebra?
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Solution
In Boolean algebra, A + A' equals 1, as one of the inputs will always be true.
Correct Answer:
B
— 1
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Q. What is the result of the expression A AND NOT A?
Show solution
Solution
The expression A AND NOT A is always false, which is represented by 0.
Correct Answer:
C
— 0
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Q. What is the result of the expression A OR (A AND B) when A is true?
A.
True
B.
False
C.
Undefined
D.
A AND B
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Solution
If A is true, A OR (A AND B) evaluates to true regardless of B.
Correct Answer:
A
— True
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Q. What is the result of the expression A OR A?
A.
A
B.
0
C.
1
D.
A AND A
Show solution
Solution
The expression A OR A simplifies to A, as it is idempotent.
Correct Answer:
A
— A
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Q. What is the result of the expression A OR NOT A?
Show solution
Solution
The expression A OR NOT A is always true, which is represented by 1.
Correct Answer:
D
— 1
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Q. What is the result of the expression NOT (A AND B)?
A.
A OR B
B.
A AND B
C.
NOT A AND NOT B
D.
NOT A OR NOT B
Show solution
Solution
This is an application of De Morgan's Theorem, which states NOT (A AND B) = NOT A OR NOT B.
Correct Answer:
D
— NOT A OR NOT B
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