1
GATE CSE 2014 Set 1
MCQ (Single Correct Answer)
+2
-0.6
An ordered $$n$$-tuple $$\left( {{d_1},\,\,{d_2},\,....,{d_n}} \right)$$ with $${{d_1} \ge ,\,\,{d_2} \ge .... \ge {d_n}}$$ is called graphic if there exists a simple undirected graph with $$n$$ vertices having degrees $${d_1},{d_2},.....,{d_n}$$ respectively. Which of the following $$6$$- tuples is NOT graphic?
2
GATE CSE 2014 Set 1
Numerical
+2
-0
Consider an undirectional graph $$G$$ where self-loops are not allowed. The vertex set of $$G$$ is $$\left\{ {\left( {i,j} \right):\,1 \le i \le 12,\,1 \le j \le 12} \right\}.$$ There is an edge between $$(a,b)$$ and $$(c,d)$$ if $$\left| {a - c} \right| \le 1$$ and $$\left| {b - d} \right| \le 1$$. The number of edges in this graph is _____.
Your input ____
3
GATE CSE 2013
MCQ (Single Correct Answer)
+2
-0.6
The line graph $$L(G)$$ of a simple graph $$G$$ is defined as follows:
$$\,\,\,\,$$There is exactly one vertex $$v(e)$$ in $$L$$(G)$$ for each edge $$e$$ in $$G$$
$$\,\,\,\,$$ For any two edges $$e$$ and $$e'$$ in $$G$$, $$L(G)$$ has an edge between $$v(e)$$ and $$v(e')$$, if and only if $$e$$ and $$e'$$
$$\,\,\,\,$$ Which of the following statements is/are TRUE?
(P) The line graph of a cycle is a cycle.
(Q) The line graph of a clique is a clique.
(R) The line graph of a planar graph is planar.
(S) The line graph of a tree is a tree.
4
GATE CSE 2012
MCQ (Single Correct Answer)
+2
-0.6
Which of the following graphs is isomorphic to
![GATE CSE 2012 Discrete Mathematics - Graph Theory Question 64 English](https://imagex.cdn.examgoal.net/Zf21QyRG6T2PNRlqG/RQvfh36OffRhCJfe3CLgvYQ0TABDY/qt261BR9RFrAWgkkyGMIOP/uploadfile.jpg)
![GATE CSE 2012 Discrete Mathematics - Graph Theory Question 64 English](https://imagex.cdn.examgoal.net/Zf21QyRG6T2PNRlqG/RQvfh36OffRhCJfe3CLgvYQ0TABDY/qt261BR9RFrAWgkkyGMIOP/uploadfile.jpg)
Questions Asked from Graph Theory (Marks 2)
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