Faculty of Engineering Ph.D Question Paper Sample : pacific-university.ac.in
Name of the University : Pacific University
Degree : Ph.D
Document Type : Model Question Paper
Department : Information Technology
Name of the Subject : Faculty of Engineering
Website : pacific-university.ac.in
Download Model/Sample Question Paper :https://www.pdfquestion.in/uploads/5494-computerscience.pdf
Engineering Ph.D Question Paper :
Computer Science and Information Technology
Max. Marks 100
Related : Pacific University Pharmacy Ph.D Question Paper Sample : www.pdfquestion.in/5487.html
Attempt all 50 questions, each question carries 02 marks. There is no negative Marking. Please mark the correct answer as A/B/C/D at appropriate place, on the right hand side of the question, in blue or black ink.
1. Consider different activities related to email. m1: Send an email from a mail client to a mail server m2: Download an email from mailbox server to a mail client m3: Checking email in a web browser which is the application level protocol used in each activity?
(A) m1: HTTP m2: SMTP m3: POP
(B) m1: SMTP m2: FTP m3: HTTP
(C) m1: SMTP m2: POP m3: HTTP
(D) m1: POP m2: SMTP m3: IMAP [ ]
2. HTML (Hyper Text Markup Language) has language elements which permit certain actions other than describing the structure of the web document. Which one of the following actions is NOT supported by pure HTML (without any server or client side scripting) pages?
(A) Embed web objects from different sites into the same page
(B) Refresh the page automatically after a specified interval
(C) Automatically redirect to another page upon download
(D) Display the client time as part of the page [ ]
3. Which one of the following is NOT desired in a good Software Requirement Specifications (SRS) document?
(A) Functional Requirements (B) Non-Functional Requirements
(C) Goals of Implementation (D) Algorithms for Software Implementation [ ]
4. Consider a relational table with a single record for each registered student with the following attributes.
A. Registration_Num: Unique registration number of each registered student
B. UID: Unique identity number, unique at the national level for each citizen
C. BankAccount_Num: Unique account number at the bank. A student can have multiple
D. Name: Name of student
F. Hostel Room: Room number of the hostel
Which of the following options is INCORRECT?
(A) Bank Account_Num is a candidate key
(B) Registration_Num can be a primary key
(C) UID is a candidate key if all students are from the same country
(D) If S is a super key such that S∩UID is NULL then S∩UID is also a super key [ ]
5. A company needs to develop a strategy for software product development for which it has a choice of two programming languages L1 and L2. The number of lines of code (LOC) developed using L2 is estimated to be twice the LOC developed with L1. The product will have to be maintained for five years.
6. In a compiler, keywords of a language are recognized during
(A) Parsing of the program (B) The code generation
(C) The lexical analysis of the program (D) Dataflow analysis [ ]
7. Let P be a regular language and Q be a context-free language such that Q ∩ P. For example Let P be the language represented by the regular expression p*q* and be (pn qn| n ε N) . Then which of the following ALWAYS regular?
(A) P ∩ Q (B) P – Q
(C) Σ* P (D) Σ* [ ]
8. Let the page fault service time be 10 ms in a computer with average memory access time being 20 ns. If one page fault is generated for every 106 memory access, what is the effective access time for the memory?
(A) 21 ns (B) 30 ns
(C) 23 ns (D) 35 ns [ ]
9. The lexical analysis for a modern computer language such as Java needs the power of which one of the following machine models in a necessary and sufficient sense?
(A) Finite state automata (B) Deterministic pushdown automata
(C) Non-deterministic pushdown automata (D) Turing machine [ ]
10. A thread is usually defined as a “light weight process” because an operating system (OS) maintains smaller data structures for a thread than for a process. In relation to this, which of the following is TRUE?
(A) On per-thread basis, the OS maintains only CPU register state
(B) The OS does not maintain a separate stack for each thread
(C) On per-thread basis, the OS does not maintain virtual memory state
(D) On per-thread basis, the OS maintains only scheduling and accounting information [ ]