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559.

If 73_x (in base-x number system) is equal to 54_y (in base y-number system), the possible values of x and y are [1 mark]
(a) 8, 16
(b) 10, 12
(c) 9, 13
(d) 8, 11

asked in Computer Science And Engineering, 2004

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560.

In an SR latch made by cross-coupling two NAND gates, if both S and R inputs are set to 0, then it will result in
(a) Q = 0, Q' = 1
(b) Q = 1,Q' = 0
(c) Q = 1,Q' = 1
(d) Indeterminate states

last reply by CpjJwWHV • 11 years ago • asked in Computer Science And Engineering, 2004

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561.

A Boolean function x'y' + xy + x'y is equivalent to [1 mark]
(a) x' + y'
(b) x + y
(c) x + y'
(d) x' + y

asked in Computer Science And Engineering, 2004

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562.

Which of the following is NOT true with respect to a transparent bridge and a router?
[1 mark]
(a) Both bridge and router selectively forward data packets
(b) A bridge uses IP addresses while a router uses MAC addresses
(c) A bridge builds up its routing table by inspecting incoming packets
(d) A router can connect between a LAN and a WAN

asked in Computer Science And Engineering, 2004

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563.

Choose the best matching between Group 1 and Group 2

Group –1 Group – 2

P. Data link layer 1. Ensures reliable transport of data over a physical
point-to-point link

Q. Network layer 2. Encodes/decodes data for physical transimission

R. Transport layer 3. Allows end-to-end communication between two processes

4. Routes data from one network node to the next

[1 mark]
(a) P – 1, Q – 4, R - 3
(b) P – 2, Q – 4, R - 1
(c) P – 2, Q – 3, R - 1
(d) P – 1, Q – 3, R - 2

asked in Computer Science And Engineering, 2004

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564.

Consider the following relation schema pertaining to a students database:
Students (rollno, name, address)
Enroll(rollno,courseno, coursename)
Where the primary keys are shown underlined. The number of tuples in the student and Enroll tables are 120 and 8 respectively. What are the maximum and minimum number of tuples that can be present in (Student * Enroll), where ‘*’ denotes natural join?
[1 mark]
(a) 8,8
(b) 120,8
(c) 960,8
(d) 960,120

asked in Computer Science And Engineering, 2004

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