Which one of the following phrases best describes residual magnetism?
Options: Magnetism that remains in the core of an electromagnet after the current through the coil is turned off, The force of attraction between the poles of a permanent and temporary magnetic field, The amount of magnetic flux that is not confined to the core material of an electromagnet, The circular magnetic field that surrounds a conductor carrying a current
Options: a. Facilitate data b. Functional data c. Facilitate dependency d. Functional dependency
Ans:â€“ d ,
Which of the following is true when describing a link-local address?
Options: Packets addressed to a unicast address are delivered to a single interface., These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4., These are like private addresses in IPv4 in that they are not meant to be routed., These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
Options: decides which program to run, counts the number of instructions that have been executed, contains the address of the next instruction to be executed, is where arithmetic is done in a computer.
When referring to instruction words, a mnemonic is:
Options: a short abbreviation for the operand address, a short abbreviation for the operation to be performed, a short abbreviation for the data word stored at the operand address, shorthand for machine language
. In a query’s Design View, right-clicking the sloping portion of the join line between two tables and selecting Delete will delete what?
Options: a. The join line but not the relationship between the two tables
b. The relationship between the two tables locally
c. The relationship between the two tables globally
d. The primary key of the first table
A heterogeneous distributed database is which of the following?
Options: The same DBMS is used at each location and data are not distributed across all nodes., The same DBMS is used at each location and data are distributed across all nodes., A different DBMS is used at each location and data are not distributed across all nodes., A different DBMS is used at each location and data are distributed across all nodes.
The data-link layer, in reference to the OSI model, specifies
Options: data link procedures that provide for the exchange of data via frames that can be sent and received, the interface between the X.25 network and packet mode device, the virtual circuit interface to packet-switched service, All of the above