When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?
You need to allow one host to be permitted to attach dynamically to each switch interface. Which two commands must you configure on your catalyst switch to meet this policy? Switch(config-if)# ip access-group 10 Switch(config-if)# switchport port-security maximum 1 Switch(config)# access-list 10 permit ip host 1 Switch(config-if)# switchport port-security violation shutdown Switch(config)# mac-address-table secure
Which SQL Query is use to remove a table and all its data from the database?
a. Create Table
b. Alter Table
c. Drop Table
d. None of these
Options: Every primary-key value must match a primary-key value in an associated table
B. Every primary-key value must match a foreign-key value in an associated table
C. Every foreign-key value must match a primary-key value in an associated table
D. Every foreign-key value must match a foreign-key value in an associated table
Ans:– c ,
You get a call from a network administrator who tells you that he typed the following into his router: Router(config)#router ospf 1 Router(config-router)#network 10.0.0.0 255.0.0.0 area 0 He tells you he still can't see any routes in the routing table. What configuration error did the administrator make?
Options: The wildcard mask is incorrect., The OSPF area is wrong., The OSPF Process ID is incorrect., The AS configuration is wrong.
Which of the following is true for machine language.
Options: Repeated execution of program segments, Depicting flow of data in a system, A sequence of instructions which, when followed properly, solves a problem, the language which communicates with the computer using only the binary digits 1 and 0.
In laser printer technology, what happens during the conditioning stage?
Options: The corona wire places a uniform positive charge on the paper, A uniform negative charge is placed on the photosensitive drum, A uniform negative charge is placed on the toner, All of the above
Options: When a supertype entity inherits values of the subtype attribute, When a subtype entity inherits values of the supertype attribute, When a supertype entity inherits values of another supertype attribute, When a subtype entity inherits values of another subtype attribute
Many large organizations have information _____ where managers can use fourth-generation languages to retrieve the facts they need from online data bases, and where staff experts are available to provide PC hardware/ software guidance.