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A company has 800 employees spread across six countries. The analyst needs statistics on how often each employee uses the current stock sys... [1]
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012.5: Binary representation
3 questionsPractice
022.6: Simple logic gates
3 questionsPractice
034.6: Programming
3 questionsPractice
042.3: Secondary storage
2 questionsPractice
054.8: Collections
2 questionsPractice
065.3: Linked lists
2 questionsPractice
075.4: Stacks
2 questionsPractice
087.3: The role of feedback
2 questionsPractice
091.2: System design basics
1 questionsPractice
102.1: Computer architecture
1 questionsPractice
112.2: Primary memory
1 questionsPractice
122.4: Operating systems
1 questionsPractice
133.2: Data transmission
1 questionsPractice
143.5: Protocols
1 questionsPractice
154.1: General principles
1 questionsPractice
164.4: Thinking ahead
1 questionsPractice
174.5: Thinking concurrently
1 questionsPractice
184.7: Control
1 questionsPractice
195.5: Trees
1 questionsPractice
206.1: Introduction to resource management
1 questionsPractice
216.2: Role of the operating system in resource management
1 questionsPractice
226.3: Types of scheduling
1 questionsPractice
237.1: Role of control systems
1 questionsPractice

02 Questions

34
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A company has 800 employees spread across six countries. The analyst needs statistics on how often each employee uses the current stock system. Which information-gathering techn...MCQA computer's primary memory holds the boot-up instructions used when power is first applied, and also holds the currently running program and its data. Which memory type is vola...MCQA laptop is used on rough terrain and is frequently knocked while running. Its internal drive stores data in NAND flash memory cells. Compared with a hard disk drive, this drive...MCQA program simulates a device that loses the contents of primary memory when power is removed. Variables in RAM are reset to 0 on each power loss; values written to DISK persist....MCQA running process references a memory address on a page that is not currently in RAM. Which action does the operating system take?MCQAn 8-bit register holds the binary value 10011010. The value is interpreted as an unsigned integer. What is the denary equivalent?MCQN = 45 P = 1 T = 0 loop while N > 0 B = N mod 2 T = T + B * P P = P * 10 N = N div 2 end loop output T What is the output?MCQThe pseudocode enumerates the input rows of a truth table for two inputs A and B and outputs the value of one Boolean expression for each row. loop A from 0 to 1 loop B from 0 t...MCQA receiver stores the sequence numbers of arriving packets in the array PACKETS = [1, 2, 4, 5, 3]. The pseudocode below models a TCP receiver that outputs only packets delivered...MCQThe pseudocode below uses integer division DIV, which discards any fractional part, and MOD, which gives the remainder. A = 17 B = 5 C = A DIV B D = A MOD B E = C + D output E W...MCQThe function F(N) returns 1 when N ≤ 1 , and otherwise returns N + F(N-1) . The value returned by F(4) is passed as the argument to G(X) , which returns 2 × X . What is the valu...MCQA dough prover heats for exactly 40 minutes after the start button is pressed, then switches off. A separate bread oven switches its heater off when a probe reads 220 ^°C and on...MCQA collection NAMES holds five items. After resetNext() is called, getNext() is executed five times. A further call to hasNext() returnsMCQA singly linked list holds the values 4, 9, 16, 25 in that order. HEAD references the first node. Each node has fields DATA and NEXT, and the last node's NEXT is NULL. CURRENT =...MCQA binary tree has 4 levels, numbered from level 1 at the root. Every level is completely filled. How many nodes does the tree contain?MCQA microwave oven heats food for a time entered on a keypad and then stops. A room heater switches off when a thermistor reading reaches the dial temperature. Which system is ope...MCQDefineDefine the term stack. [2]WRITTEN[2]DefineDefine the term volatile memory. [2]WRITTEN[2]DefineDefine the terms bit and byte. [2]WRITTEN[2]StateState two applications of logic gates. [2]WRITTEN[2]DefineDefine the Boolean operator NAND. [2]WRITTEN[2]DefineDefine the term protocol. [2]WRITTEN[2]DefineDefine the term pre-condition. [2]WRITTEN[2]ListList two advantages of caching. [2]WRITTEN[2]DefineDefine concurrent processing. [2]WRITTEN[2]DefineDefine the term Boolean data type. [2]WRITTEN[2]StateState two characteristics of a collection. [2]WRITTEN[2]IdentifyIdentify the two fields of a node. [2]WRITTEN[2]StateState two applications of stacks. [2]WRITTEN[2]StateState two resources managed by an operating system. [2]WRITTEN[2]DefineDefine virtual memory. [2]WRITTEN[2]DefineDefine preemptive scheduling. [2]WRITTEN[2]DefineDefine the term closed-loop control system. [2]WRITTEN[2]StateState two components of a feedback loop. [2]WRITTEN[2]
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