Which of these is not a feature of Hierarchical model?
Parent node can have any number of child nodes
Child node can have any number of parent nodes
Root node does have any parent
Organizes the data in tree- like structure
All are feature of hierarchical model
Option B A hierarchical database model is a data model in which the data is organized into a tree-like structure. The hierarchical database model mandates that each child record has only one parent, whereas each parent record can have one or more child records.
Changing desktop wallpaper is a simple task which can be accessed through ________ section of all control panel items?
Personalize
Image
Graphics
Windows
Browser
Option A Wallpapers can be changed by the personalise section of all control panel items.
A special, high-speed storage area within the CPU in which all data must be represented before it can be processed is called _____?
BIOS
Cache
RAM
Register
None of these
Option D Register is a special high-speed storage area within the CPU where all data must be represented before it can be processed.
Which operation performs a set union of two ‘similarly structured’ tables?
Union
Select
Product
Intersect
None of these
Option A Union operation performs a set union of two ‘similarly structured’ tables.
Which of the following is true when describing a multicast address?
Packets addressed to a unicast address are delivered to a single interface
Packets are delivered to all interfaces identified by the address. This is also called a one-to-many address
Identifies multiple interfaces and is only delivered to one address. This address can also be called one-to-one-of-many
These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap
None of these
Option C Packets addressed to a multicast address are delivered to all interfaces identified by the multicast address, the same as in IPv4. It is also called a one-to-many address. You can always tell a multicast address in IPv6 because multicast addresses always start with.
What flavor of Network Address Translation can be used to have one IP address allow many users to connect to the global Internet?
NAT
Static
Dynamic
PAT
None of these
Option D Port Address Translation (PAT) allows a one-to-many approach to network address translation.
A symbol or question on the screen that prompts you to take action and tells the computer what to do next______?
Scanner
Questionnaire
Prompt and dialog box
Information seeker
None of the Above
Option C The graphical control element dialog box (also called dialogue box or just dialog) is a small window that communicates information to the user and prompts them for a response. Dialog boxes are classified as “modal” or “modeless”, depending on whether they block interaction with the software that initiated the dialog. The type of dialog box displayed is dependent upon the desired user interaction.
First smartphone was launched in Japan by which company?
Sony
Okuma
NTT docomo
Visco
None of these
Option C In 1999 japanese firm NTT Docomo released first smartphone. But it become wide spread in 2000.
Which of the following is a type of program that either pretends to have, or is described as having, a set of useful or desirable features but actually contains damaging code.
Trojans
Viruses
Worm
Adware
Bots
Option A Generally, you receive Trojan horses though emails, infected webpages, instant message, or downloading services like games, movies, and apps. True Trojan horses are not technically viruses, since they do not replicate; however, many viruses and worms use Trojan horse tactics to initially infiltrate a system. The best way to stay away from Trojans is by making sure you install software from trusted sources.
Which among the following is the set of programs that enables your computer’s hardware devices and application software to work together?
Word processing software
Utility software
Media software
Integrity tools
None of these
Option B Utility software is system software designed to help analyse, configure, optimize or maintain a computer.
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