CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
If a memory is byte-addressable and has 16 address lines, what is its maximum directly addressable capacity?
A. 32768 bytes
B. 16 bytes
C. 131072 bytes
D. 64 KiB
Correct Answer: D
16 address lines select 2^16 byte locations, giving 64 KiB.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
If a memory is byte-addressable and has 12 address lines, what is its maximum directly addressable capacity?
A. 8192 bytes
B. 2048 bytes
C. 12 bytes
D. 4 KiB
Correct Answer: D
12 address lines select 2^12 byte locations, giving 4 KiB.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
If a memory is byte-addressable and has 10 address lines, what is its maximum directly addressable capacity?
A. 10 bytes
B. 512 bytes
C. 1 KiB
D. 2048 bytes
Correct Answer: C
10 address lines select 2^10 byte locations, giving 1 KiB.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
If a memory is byte-addressable and has 8 address lines, what is its maximum directly addressable capacity?
A. 128 bytes
B. 256 bytes
C. 8 bytes
D. 512 bytes
Correct Answer: B
8 address lines select 2^8 byte locations, giving 256 bytes.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many distinct addresses can an unsigned 32-bit address field represent?
A. 8589934592
B. 2147483648
C. 4294967296
D. 64
Correct Answer: C
An 32-bit field has 2^32 = 4294967296 distinct bit patterns.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many distinct addresses can an unsigned 24-bit address field represent?
A. 8388608
B. 16777216
C. 48
D. 33554432
Correct Answer: B
An 24-bit field has 2^24 = 16777216 distinct bit patterns.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many distinct addresses can an unsigned 20-bit address field represent?
A. 1048576
B. 2097152
C. 40
D. 524288
Correct Answer: A
An 20-bit field has 2^20 = 1048576 distinct bit patterns.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many distinct addresses can an unsigned 16-bit address field represent?
A. 32768
B. 65536
C. 32
D. 131072
Correct Answer: B
An 16-bit field has 2^16 = 65536 distinct bit patterns.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many distinct addresses can an unsigned 12-bit address field represent?
A. 8192
B. 2048
C. 24
D. 4096
Correct Answer: D
An 12-bit field has 2^12 = 4096 distinct bit patterns.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many distinct addresses can an unsigned 10-bit address field represent?
A. 2048
B. 1024
C. 20
D. 512
Correct Answer: B
An 10-bit field has 2^10 = 1024 distinct bit patterns.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many distinct addresses can an unsigned 8-bit address field represent?
A. 128
B. 256
C. 16
D. 512
Correct Answer: B
An 8-bit field has 2^8 = 256 distinct bit patterns.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
A 64-bit data item contains how many bytes?
A. 8
B. 64
C. 4
D. 16
Correct Answer: A
8 is the correct conversion.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
A 32-bit data item contains how many bytes?
A. 4
B. 8
C. 2
D. 16
Correct Answer: A
4 is the correct conversion.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many bits are represented by 4 bytes?
A. 16
B. 64
C. 8
D. 32
Correct Answer: D
32 is the correct conversion.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many bytes are represented by 16 bits?
A. 2
B. 1
C. 4
D. 8
Correct Answer: A
2 is the correct conversion.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many GiB are in 1 TiB?
A. 1024
B. 1000
C. 512
D. 2048
Correct Answer: A
1024 is the correct conversion.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many MiB are in 1 GiB?
A. 1000
B. 1024
C. 2048
D. 512
Correct Answer: B
1024 is the correct conversion.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many KiB are in 1 MiB?
A. 1024
B. 2048
C. 512
D. 1000
Correct Answer: A
1024 is the correct conversion.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many bytes are in 1 KiB?
A. 512
B. 1024
C. 2048
D. 1000
Correct Answer: B
1024 is the correct conversion.
CSS - PMS - CCE - PCS - Basic Computing
Computer Memory
How many bits are in 1 nibble?
A. 16
B. 8
C. 4
D. 2
Correct Answer: C
4 is the correct conversion.