Which of the following option is use to retrieval of data?
b. Data Structure
c. Linked list
Options: Every primary-key value must match a primary-key value in an associated table
B. Every primary-key value must match a foreign-key value in an associated table
C. Every foreign-key value must match a primary-key value in an associated table
D. Every foreign-key value must match a foreign-key value in an associated table
Ans:– d ,
. Format painter
Options: a. To paint pretty pictures on your slides b. To copy formatting from one object or piece of text and then apply it elsewhere c. To change the background color of your slides d. To paint pretty pictures on background of slides
Before any changes to database structure are attempted one should first:
Options: clearly understand the current structure and contents of the database only., test any changes on a test database only., create a complete backup of the operational database only., All of the above should be done.
If you need to double underline a word, how will you do that?
Options: a. Go to Format menu and then Font option. Open Underline Style and choose Double Underline
b. From Format menu choose Font option and then from Font tab open Underline Style and select Double Underline
c. Select the text then choose Format >> Font and on Font tab, open Underline Style and choose Double Underline
d. Click double underline tool on formatting toolbar
The advantage(s) of incorporating the macro processor into pass 1 is/ are:
Options: many functions do not have to be implemented twice, Functions are combined and it is not necessary to create intermediate files as output from the macro processor and input to the assembler, more flexibility is available to the programmer in which he/she may use all the features of the assembler in conjunction with macros, All of the above
Which one of the following is a statement of Kirchhoffs current law?
Options: The current through a resistance is proportional to the value of resistance and the IR drop across it, The total current in a parallel circuit is less than the value of the smallest current, The algebraic sum of currents in a loop is equal to zero, The algebraic sum of currents entering and leaving a point is equal to zero
What does the show check box in query design window indicate
Options: a. It indicates whether the field is to be used or not
b. It indicates whether the field is to be displayed in query result or not
c. It indicates whether the field names to be displayed in query result or not
d. None of above
Options: have both their operands in the main store., which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, expect in the case of store operation when it is also written into the specified storage location., which perform indicated operations on two fast registers of the machine and have the result in one of the registers, all of the above
The research and development department at your office has been experimenting with different technologies to help improve the performance of the network. One group has been examining the use of a broadband network versus a based band network. Select the correct statement about broadband and baseband.
Options: Broadband networks carry several channels on a single cable, whereas in a baseband network several cables carry one channel, Baseband networks carry a single channel on a single cable, whereas broadband networks carry several channels on a single cable, Baseband refers to local area networks, and broadband refers to wide area networks., Baseband operates at a standard bit rate, whereas broadband may operate at different rates as needed