{"id":167,"date":"2020-04-03T09:24:43","date_gmt":"2020-04-03T09:24:43","guid":{"rendered":"https:\/\/temp.ashkerala.com\/?p=167"},"modified":"2020-04-03T09:24:43","modified_gmt":"2020-04-03T09:24:43","slug":"c-mcq-10","status":"publish","type":"post","link":"https:\/\/temp.ashkerala.com\/?p=167","title":{"rendered":"C++ MCQ-10"},"content":{"rendered":"

Q.16\u00a0\u00a0 If we create a file by \u0393\u00c7\u00ffifstream\u0393\u00c7\u00d6, then the default mode of the file is _________\u00a0 \u00a0<\/strong>
(A)\u00a0 ios :: out\u00a0 (B)\u00a0 ios :: in
(C)\u00a0 ios :: app\u00a0 (D)\u00a0 ios :: binary
\u00a0
\u00a0 Ans: B
\u00a0
Q.17\u00a0\u00a0 A variable defined within a block is visible\u00a0\u00a0<\/strong> \u00a0
\u00a0\u00a0 (A) from the point of definition onward in the program.\u00a0\u00a0 \u00a0
\u00a0\u00a0 (B) from the point of definition onward in the function.
\u00a0\u00a0 (C) from the point of definition onward in the block.\u00a0 \u00a0
\u00a0\u00a0 (D) throughout the function.
\u00a0
\u00a0\u00a0 Ans: C\u00a0 \u00a0
\u00a0
Q.18\u00a0\u00a0 The break statement causes an exit\u00a0\u00a0\u00a0<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (A) from the innermost loop only.\u00a0 (B) only from the innermost switch.
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (C) from all loops & switches.\u00a0 (D) from the innermost loop or switch.
\u00a0 \u00a0
\u00a0 Ans: D
\u00a0
Q.19\u00a0\u00a0 Which of the following cannot be legitimately passed to a function<\/strong>
\u00a0(A)\u00a0 A constant.\u00a0 (B) A variable.
\u00a0(C)\u00a0 A structure.\u00a0 (D) A header file. \u00a0
\u00a0
\u00a0\u00a0 Ans: D
\u00a0
Q.20\u00a0 A property which is not true for classes is that they\u00a0<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0
(A)\u00a0\u00a0 are removed from memory when not in use.\u00a0 \u00a0
(B)\u00a0\u00a0 permit data to be hidden from other classes.
(C)\u00a0\u00a0 bring together all aspects of an entity in one place. \u00a0
(D)\u00a0\u00a0 Can closely model objects in the real world.
\u00a0\u00a0\u00a0 \u00a0
\u00a0\u00a0 Ans: C
\u00a0
Q.21\u00a0 You can read input that consists of multiple lines of text using<\/strong> \u00a0
(A)\u00a0\u00a0 the normal cout << combination. \u00a0
(B)\u00a0\u00a0 the cin.get( ) function with one argument.
(C)\u00a0\u00a0 the cin.get( ) function with two arguments. \u00a0
(D)\u00a0\u00a0 the cin.get( ) function with three arguments.
\u00a0
\u00a0\u00a0 Ans: C
\u00a0
Q.22\u00a0\u00a0 The keyword friend does not appear in\u00a0<\/strong> \u00a0
(A)\u00a0\u00a0 the class allowing access to another class.\u00a0 \u00a0
(B)\u00a0\u00a0 the class desiring access to another class.
(C)\u00a0\u00a0 the private section of a class. \u00a0
(D)\u00a0\u00a0 the public section of a class.
\u00a0
\u00a0\u00a0 Ans: C
\u00a0
Q.23\u00a0\u00a0 The process of building new classes from existing one is called<\/strong>
(A)\u00a0 Structure.\u00a0 (B)\u00a0 Inheritance.
(C)\u00a0 Polymorphism.\u00a0 (D)\u00a0 Template.
\u00a0
\u00a0\u00a0 Ans: B
\u00a0
Q.24\u00a0 If you wanted to sort many large objects or structures, it would be most efficient to <\/strong>\u00a0
\u00a0\u00a0 \u00a0
(A)\u00a0\u00a0\u00a0 place them in an array & sort the array.\u00a0 \u00a0
(B)\u00a0\u00a0\u00a0 place pointers to them in an array & sort the array.
(C)\u00a0\u00a0\u00a0 place them in a linked list and sort the linked list. \u00a0
(D)\u00a0\u00a0\u00a0 place references to them in an array and sort the array.
\u00a0 \u00a0
\u00a0\u00a0 Ans: C
\u00a0
Q.25\u00a0\u00a0 Which statement gets affected when i++ is changed to ++i?<\/strong>\u00a0 \u00a0
\u00a0\u00a0 (A) i = 20; i++;\u00a0\u00a0 \u00a0
\u00a0\u00a0 (B) for (i = 0; i<20; i++) { }
\u00a0\u00a0 (C) a = i++; \u00a0
\u00a0\u00a0 (D) while (i++ = 20) cout <<i;
\u00a0
\u00a0\u00a0 Ans: A
\u00a0
Q.26\u00a0\u00a0 A friend function to a class, C cannot access\u00a0<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0
\u00a0\u00a0\u00a0 (A) private data members and member functions.
\u00a0\u00a0\u00a0 (B) public data members and member functions.
\u00a0\u00a0\u00a0 (C) protected data members and member functions. \u00a0
\u00a0\u00a0\u00a0 (D) the data members of the derived class of C.
\u00a0 \u00a0
\u00a0 Ans: D
\u00a0
Q.27\u00a0 The operator that cannot be overloaded is\u00a0\u00a0<\/strong> \u00a0
(A)\u00a0 ++\u00a0 (B) ::
(C)\u00a0 ( )\u00a0 (D) ~ \u00a0
\u00a0
\u00a0\u00a0 Ans: B\u00a0 \u00a0
\u00a0
Q.28\u00a0\u00a0 A struct is the same as a class except that<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0
(A)\u00a0\u00a0 there are no member functions.\u00a0 \u00a0
(B)\u00a0\u00a0 all members are public.
(C)\u00a0\u00a0 cannot be used in inheritance hierarchy. \u00a0
(D)\u00a0\u00a0 it does have a this pointer.
\u00a0\u00a0\u00a0 \u00a0
\u00a0 Ans: C
\u00a0
Q.29\u00a0 Pure virtual functions <\/strong>\u00a0
(A) have to be redefined in the inherited class.\u00a0 \u00a0
(B) cannot have public access specification.
(C) are mandatory for a virtual class. \u00a0
(D) None of the above.
\u00a0
\u00a0\u00a0 Ans: A
\u00a0
Q.30\u00a0 Additional information sent when an exception is thrown may be placed in \u00a0<\/strong>
(A)\u00a0 the throw keyword.\u00a0 \u00a0
(B)\u00a0 the function that caused the error.
(C)\u00a0 the catch block. \u00a0
(D)\u00a0 an object of the exception class.
\u00a0
\u00a0\u00a0 Ans: C<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Q.16\u00a0\u00a0 If we create a file by \u0393\u00c7\u00ffifstream\u0393\u00c7\u00d6, then the default mode of the file is _________\u00a0 \u00a0 (A)\u00a0 ios :: out\u00a0 (B)\u00a0 ios :: in (C)\u00a0 ios :: app\u00a0 (D)\u00a0 ios :: binary \u00a0 \u00a0 Ans: B \u00a0 Q.17\u00a0\u00a0 A variable defined within a block is visible\u00a0\u00a0 \u00a0 \u00a0\u00a0 (A) from the point of…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-167","post","type-post","status-publish","format-standard","hentry","category-c-and-c-programming-language"],"_links":{"self":[{"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/posts\/167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=167"}],"version-history":[{"count":0,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=\/wp\/v2\/posts\/167\/revisions"}],"wp:attachment":[{"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/temp.ashkerala.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}