Which one of the following statements is true for the voltages in a series RL circuit?
Options: The total voltages is equal to the sum of the voltages across the resistance and inductance, The voltage always has the same amplitude and phase for every part of the circuit, The total voltage is less than the sum of the voltages across the resistance and inductance, The total voltage lags the total current by less than 90
Which one of the following is true regarding VLANs?
Options: Two VLANs are configured by default on all Cisco switches., VLANs only work if you have a complete Cisco switched internetwork. No off-brand switches are allowed., You should not have more than 10 switches in the same VTP domain., VTP is used to send VLAN information to switches in a configured VTP domain.
The difference between linear array and a record is
Options: a. An array is suitable for homogeneous data but hte data items in a record may have different data type
b. In a record, there may not be a natural ordering in opposed to linear array.
c. A record form a hierarchical structure but a lienear array does not
d. All of above
To return the remainder after a number is divided by a divisor in EXCEL we use the function?
Options: ROUND ( )
B. FACT ( )
C. MOD ( )
D. DIV ( )
Ans:– C ,
Which of the following is not true of a magnetic disk?
Options: It is expensive relative to magnetic tape, It provides only sequential access to stored data, Users can easily update records by writing over the old data, It does not provide an automatic audit trail
You are trying to decide which type of network you will use at your office, and you want the type that will provide communication and avoid collisions on the cable. Which of the following is the best choice?