1
WGU C952 OBJECTIVE ASSESSMENT FINAL NEWEST 2026
ACTUAL EXAM TEST BANK| C952 COMPUTER ARCHITECTURE
OA FINAL REVIEW WITH COMPLETE 70 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/ ALREADY
GRADED A+ (MOST RECENT!!)
SECTION 1: NUMBER SYSTEMS & DATA REPRESENTATION (Q1–12)
Q1. Convert the binary number 11011010 to its hexadecimal
equivalent.
• A) C9
• B) DA
• C) DB
• D) CA
✅ Answer: B) DA Group bits into nibbles: 1101 = D, 1010 = A → 0xDA
Q2. What is the decimal value of the two's complement binary number
11110110 (8-bit)?
• A) 246
• B) −9
• C) −10
• D) −11
pg. 1
,2
✅ Answer: C) −10 Invert: 00001001 = 9, add 1 = 10, so value is −10
Q3. Which number representation allows for only ONE representation
of zero?
• A) Sign-and-magnitude
• B) One's complement
• C) Two's complement
• D) Excess-127
✅ Answer: C) Two's complement
Q4. A 32-bit IEEE 754 single-precision float has the bit pattern: 0
10000001 10100000000000000000000 What is the decimal value?
• A) 6.5
• B) 13.0
• C) 3.25
• D) 6.25
✅ Answer: A) 6.5 Sign = 0, Exponent = 129 − 127 = 2, Mantissa = 1.101
× 2² = 110.1₂ = 6.5
Q5. How many unique values can be represented by a 12-bit unsigned
integer?
• A) 2,048
• B) 4,095
pg. 2
, 3
• C) 4,096
• D) 8,192
✅ Answer: C) 4,096 2¹² = 4,096
Q6. The hexadecimal number 0x2F4C converted to decimal is:
• A) 12,108
• B) 11,084
• C) 12,076
• D) 11,500
✅ Answer: C) 12,076 2×4096 + 15×256 + 4×16 + 12 = 8192 + 3840 + 64
+ 12 = 12,108 — wait: 2×16³ + F×16² + 4×16 + C = 8192 + 3840 + 64 + 12
= 12,108 ✅ Corrected Answer: A) 12,108
Q7. In BCD (Binary Coded Decimal), the decimal number 79 is encoded
as:
• A) 0111 1001
• B) 0111 1000
• C) 1001 0111
• D) 0100 1111
✅ Answer: A) 0111 1001 7 = 0111, 9 = 1001
Q8. What is the result of adding binary 01101011 + 00110101?
• A) 10011100
pg. 3
WGU C952 OBJECTIVE ASSESSMENT FINAL NEWEST 2026
ACTUAL EXAM TEST BANK| C952 COMPUTER ARCHITECTURE
OA FINAL REVIEW WITH COMPLETE 70 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/ ALREADY
GRADED A+ (MOST RECENT!!)
SECTION 1: NUMBER SYSTEMS & DATA REPRESENTATION (Q1–12)
Q1. Convert the binary number 11011010 to its hexadecimal
equivalent.
• A) C9
• B) DA
• C) DB
• D) CA
✅ Answer: B) DA Group bits into nibbles: 1101 = D, 1010 = A → 0xDA
Q2. What is the decimal value of the two's complement binary number
11110110 (8-bit)?
• A) 246
• B) −9
• C) −10
• D) −11
pg. 1
,2
✅ Answer: C) −10 Invert: 00001001 = 9, add 1 = 10, so value is −10
Q3. Which number representation allows for only ONE representation
of zero?
• A) Sign-and-magnitude
• B) One's complement
• C) Two's complement
• D) Excess-127
✅ Answer: C) Two's complement
Q4. A 32-bit IEEE 754 single-precision float has the bit pattern: 0
10000001 10100000000000000000000 What is the decimal value?
• A) 6.5
• B) 13.0
• C) 3.25
• D) 6.25
✅ Answer: A) 6.5 Sign = 0, Exponent = 129 − 127 = 2, Mantissa = 1.101
× 2² = 110.1₂ = 6.5
Q5. How many unique values can be represented by a 12-bit unsigned
integer?
• A) 2,048
• B) 4,095
pg. 2
, 3
• C) 4,096
• D) 8,192
✅ Answer: C) 4,096 2¹² = 4,096
Q6. The hexadecimal number 0x2F4C converted to decimal is:
• A) 12,108
• B) 11,084
• C) 12,076
• D) 11,500
✅ Answer: C) 12,076 2×4096 + 15×256 + 4×16 + 12 = 8192 + 3840 + 64
+ 12 = 12,108 — wait: 2×16³ + F×16² + 4×16 + C = 8192 + 3840 + 64 + 12
= 12,108 ✅ Corrected Answer: A) 12,108
Q7. In BCD (Binary Coded Decimal), the decimal number 79 is encoded
as:
• A) 0111 1001
• B) 0111 1000
• C) 1001 0111
• D) 0100 1111
✅ Answer: A) 0111 1001 7 = 0111, 9 = 1001
Q8. What is the result of adding binary 01101011 + 00110101?
• A) 10011100
pg. 3
