1
GATE CSE 2006
MCQ (Single Correct Answer)
+2
-0.6
Consider the following grammar:
$$\eqalign{ & S \to FR \cr & R \to *S\,|\,\varepsilon \cr & F \to id \cr} $$In the predictive parser table, M, of the grammar the entries $$M\left[ {S,id} \right]$$ and $$M\left[ {R,\$ } \right]$$ respectively.
2
GATE CSE 2006
MCQ (Single Correct Answer)
+2
-0.6
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packets looping through circuits in the graph, the bridges organize themselves in a spanning tree. First, the root bridge is identified as the bridge with the least serial number. Next, the root sends out (one or more) data units to enable the setting up of the spanning tree of shortest paths from the root bridge to each bridge. Each bridge identifies a port (the root port) through which it will forward frames to the root bridge. Port conflicts are always resolved in favour of the port with the lower index value. When there is a possibility of multiple bridges forwarding to the same LAN (but not through the root port), ties are broken as follows: bridges closest to the root get preference and between such bridges, the one with the lowest serial number is preferred.
For the given connection of LANs by bridges, which one of the following choices represents the depth-first traversal of the spanning tree of bridges?
3
GATE CSE 2006
MCQ (Single Correct Answer)
+2
-0.6
Two computers C1 and C2 are configured as follows. C1 has IP address 203.197.2.53 and netmask 255.255.128.0. C2 has IP address 203.197.75.201 and netmask 255.255.192.0. which one of the following statements is true?
4
GATE CSE 2006
MCQ (Single Correct Answer)
+1
-0.3
For which one of the following reasons does Internet Protocol (IP) use the time-to-live (TTL) field in the IP datagram header?
Paper analysis
Total Questions
Algorithms
14
Compiler Design
6
Computer Networks
6
Computer Organization
9
Data Structures
12
Database Management System
8
Digital Logic
4
Discrete Mathematics
25
Operating Systems
8
Programming Languages
1
Theory of Computation
6
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