What does an array's name represent and what value does it hold when declared?
What will be an ideal response?
Array names contain references, as do all Java object names. When you declare an array name using only a data type, brackets, and a name, no memory address is assigned to it. Instead, the array variable name has the special value null. When you declare int[] someNums;, the variable name someNums has a value of null.
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__________ is a mechanism or service used to verify the integrity of a message.
A. Message authentication B. Data compression C. Data mapping D. Message digest
What are the three types of VLANs? (Select three.)
a. Port-based VLAN b. Tag-based VLAN c. Pd-based VLAN d. Protocol-based VLAN e. Label-based VLAN f. Routing-based VLAN
A VBA macro can be assigned to a command button in the ________
A) Developer tab B) Visual Basic Editor C) Insert tab D) Page Layout tab
Biometrics refers to the biological information gathered from a human body to authenticate a user. All the following are types of biometrics except ________?
a. Fingerprint reader b. Retina scanner c. Personal identification card d. Voice recognition