Screening Test for recruitment to the post of ASSISTANT SYSTEM ENGINEER IN THE OFFICE OF THE DTE OF HR & TECHNICAL EDUATION — question paper

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Screening Test for recruitment to the post of ASSISTANT SYSTEM ENGINEER IN THE OFFICE OF THE DTE OF HR & TECHNICAL EDUATION

Paper #3113 · 21-09-2019 · 123 reviewed questions · Showing 41–80 of 123

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Complete original Series II question PDF, including its original figures and options. KSLC numbered study explanations cover all 150 positions in 6 source-reference sections. Independently worked KSLC answers, not an official key or student-suggested answers. 146 positions have a worked answer; 4 unresolved printed-choice items have explanations for later review. Best-effort source searches did not establish a matching official key. These sections accompany the original PDF and are not new individually auto-scoring MCQ cards. Examination: 21 September 2019 in the official source filename; recruitment cycle: not independently established from the booklet cover.

Choose the article that completes the sentence: “Gold is ___ useful metal.”
1. the
2. an
3. a
4. Zero article
In a general statement about milk as a food, choose the article that completes the sentence: “___ milk is good for health.”
1. the
2. an
3. a
4. Zero article
Choose the correct question tag: “You are going home tomorrow, ___?”
1. aren't you
2. isn't it
3. won't you
4. wouldn't you
Choose the preposition that completes the instruction: “Share this equally ___ the five of you.”
1. between
2. among
3. with
4. for
Choose the preposition that best completes the sentence: “The bridge ___ the river was built in 2000.”
1. at
2. over
3. above
4. on
Choose the word that means “using more words than necessary.”
1. verbose
2. verbal
3. venial
4. seamless
Choose the word that means “occurring at the same time.”
1. recurrent
2. divergent
3. simultaneous
4. continuance
Choose the word meaning “knowing everything.”
1. efficient
2. omniscient
3. omnipotent
4. None of the above
A person who spends money lavishly is described as:
1. Extravagant
2. Thrifty
3. Miserly
4. Frugal
Choose the word that means “belonging to the same time.”
1. friends
2. colleagues
3. contemporary
4. people
Choose the word that means “inactive or temporarily not functioning, as if asleep.”
1. dormant
2. extinct
3. aware
4. awake
Which adjective describes a material that is likely to break rather than bend?
1. tensile
2. brittle
3. ductile
4. None of the above
Choose the word that means “unclear or open to more than one interpretation.”
1. ambiguous
2. petty
3. ignorant
4. clear
A person who arrives in a country from elsewhere to settle there permanently is called a:
1. immigrant
2. emigrant
3. vagrant
4. None of the above
Choose the word that describes a child born after the father’s death.
1. orphan
2. vagabond
3. posthumous
4. None of the above
In software development, code reusability is generally desirable because it can:
1. Decreases the testing time
2. Lowers the maintenance cost
3. Reduces the compilation time
4. Both (a) and (b)
In an object-oriented language with public, protected and private access modifiers, a class method that must be callable from outside the class should be declared:
1. Private
2. Protected
3. Public
4. External
In programming language terminology, function or operator overloading is an example of which kind of polymorphism?
1. Compile-time polymorphism
2. Subtype polymorphism
3. Parametric polymorphism
4. Ad hoc polymorphism
In C++, a function receives an argument by reference but should not modify the caller’s object. Which parameter declaration enforces read-only access inside the function?
1. Pass the argument through a pointer
2. Declare the formal parameter as a const reference
3. Declare the caller’s variable const while the function still expects a non-const reference
4. All of the above
In Java, which of the following is not a primitive data type?
1. boolean
2. byte
3. String
4. double
In Java, under normal control flow, when is a `finally` block executed?
1. Only when a checked exception is thrown
2. Only when an unchecked exception is thrown
3. Only when an exception is thrown
4. Whether or not an exception is thrown, provided control flow reaches the block
In JavaScript, what does the expression `typeof null` return?
1. object
2. null
3. undefined
4. boolean
In Java, if `m` is a variable of type `byte`, which expression is mathematically equivalent to `m << 4`?
1. m × 2⁴
2. 4m
3. m⁴
4. m + 4
In Java, which of these classes has no superclass?
1. System
2. Object
3. String
4. Exception
Which character encoding uses a 7-bit code for each character in its standard form?
1. ASCII
2. BCD
3. EBCDIC
4. GRAY
Write the decimal fraction 0.4375 in binary.
1. 0.0111
2. 0.1011
3. 0.1100
4. 0.1010
In a typical CPU, when a maskable I/O interrupt is accepted, what happens next?
1. Halts for a predetermined time
2. Hands over control of address bus and data bus to the interrupting device
3. Branches off to the interrupt service routine immediately
4. Branches off to the interrupt service routine after completion of the current instruction
Which type of computer memory loses its stored contents when power is removed?
1. Bubble memory
2. RAM
3. ROM
4. Magnetic disc
In the conventional three-assignment method for swapping two integer variables, how many additional temporary variables are needed?
1. 1
2. 2
3. 3
4. 0
On an ASCII-compatible system, what does this C statement output? `printf("%c", 100);`
1. The text 100
2. The character d (ASCII code 100)
3. The character D (ASCII code 68)
4. A null character
In C, assume `i` has been declared as an `int`. What does this code print?

for (i = 3; i < 15; i += 3) ;
printf("%d", i);
1. syntax error
2. an execution error
3. printing of 12
4. printing of 15
An initially empty stack receives these operations in order: Push(1), Push(2), Pop, Push(1), Push(2), Pop, Pop, Pop, Push(2), Pop. What sequence of values is popped, in order?
1. 2,2,1,1,2
2. 2,2,1,2,2
3. 2,1,2,2,1
4. 2,1,2,2,2
A strictly binary (full) tree is one in which every internal node has exactly two children. If it has 10 leaves, how many nodes does it have?
1. At most 19 nodes
2. Exactly 19 nodes
3. Exactly 17 nodes
4. At most 17 nodes
In a complete binary tree with n ≥ 1 nodes, the root is at depth 0 and the last level is filled from left to right. Using log base 2, what is the depth of the deepest node?
1. ⌊log₂ n⌋
2. ⌈log₂ n⌉
3. ⌊log₂(n + 1)⌋
4. ⌊log₂ n⌋ + 1
Preorder traversal of a tree is an example of which general traversal strategy?
1. Depth-first search (DFS)
2. Breadth-first (level-order) traversal
3. Topological ordering
4. Linear search
Which of the following traversal techniques lists the nodes of a binary search tree in ascending order?
1. Post-order
2. In-order
3. Pre-order
4. None of the above
Insert the keys 37, 38, 72, 48, 98, 11, and 56, in that order, into an initially empty hash table with slots 0–6. Use h(k) = k mod 7 and linear probing (advance one slot at a time, wrapping from slot 6 to slot 0). In which slot is key 11 stored?
1. 3
2. 4
3. 5
4. 6
Which device is commonly managed through spooling, where print jobs are queued before the device processes them?
1. A terminal used to enter program input
2. A secondary-memory device used in a virtual-memory system
3. A line printer that processes queued print jobs
4. None of the above
A memory has three page frames. Initially, pages 1 and 2 occupy two frames, page 1 is the least recently used, and the third frame is empty. Using LRU replacement, process the reference string 1, 2, 4, 5, 2, 1, 2, 4. How many page faults occur?
1. 3
2. 5
3. 4
4. None of the above
Which page-replacement algorithm can exhibit Belady’s anomaly, in which increasing the number of page frames increases page faults for some reference strings?
1. FIFO (First-In, First-Out)
2. LRU (Least Recently Used)
3. Optimal (MIN)
4. LFU (Least Frequently Used)

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