Computer language COBOL is appropriate for _____
Term referring to a person who uses his or her expertise to gain access to other people’s computers to get information illegally or do damage?
What is the term that refers to an ad hidden inside software that you downloaded from an internet site?
Decryption & Encryption of data are the responsibility of which layer.
Which of the following contains permanent data and gets updated during the processing of transactions?
A barcode is ________ code that represents data with bars of varying widths or heights.
Which of the following language defines commands GRANT and REVOKE?
Which IEEE Standards is used for Wi-Fi system?
Which protocol is used to convert IP addresses to MAC addresses?
Answer: Option 'D'
The Address Resolution Protocol (ARP) feature performs a required function in IP routing. ARP finds the hardware address, also known as Media Access Control (MAC) address, of a host from its known IP address. ARP maintains a cache (table) in which MAC addresses are mapped to IP addresses.
Which of the following key is a minimal super key?
Answer: Option 'C'
A candidate key is a column, or set of columns, in a table that can uniquely identify any database record without referring to any other data. Each table may have one or more candidate keys, but one candidate key is unique, and it is called the primary key. Candidate key is a minimal super key.