The LAN needs are expanding at the Ezonexam corporate office, which is quickly growing. Yo

u are instructed to enlarge the area covered by a single LAN segment on the TestKing network.Which of the following are layer 1 devices that you can use？（）

A. A switch.

B. A router.

C. A network adapter card.

D. A hub.

E. A repeater.

A. RX-queue deferred

B. TX-queue deferred

C. RX-queue saturation

D. TX-queue saturation

E. RX-queue starvation

F. TX-queue starvation

rotocol in use on the network and subnet 0 is not being used. What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block？（）

A.8

B.6

C.30

D.32

E.14

F.16

zonexam network. What are two advantages of using Layer 2 Ethernet switches over hubs？ (Choose two)

A．Allowing simultaneous frame. transmissions

B．Increasing the size of broadcast domains

C．Increasing the maximum length of UTP cabling between devices

D．Filtering frames based on MAC addresses

E．Decreasing the number of collision domains

●Heterogeneous network environments consist of computer systems from (66) vendors that run (67) operating systems and communication protocols. An organization that (68) its computer resources is usually (69) the task of integrating its heterogeneous systems. Typically, each department or division has defined its own network needs (70) OS, LAN topology, communication protocols, applications, and other components.

(66) A．same

B．similar

C．different

D．difference

(67) A．same

B．similar

C．different

D．difference

(68) A．consolidates

B．consists

C．considerate

D．consoles

(69) A．faced on

B．faced with

D．faced about

D．faced up to

(70) A．in general

B．in any term

C．in set terms

D．in terms of

four choices and write down in the answer sheet.Heterogeneous network environments consist of computer systems from (66) vendors that run (67) operating systems and communication protocols.An organization that (68) its computer resources is usually (69) the task of integrating its heterogeneous systems.Typically,each deparlment or division has defined its own network needs (70) OS，LAN topology,communication protocols，applications，and other components.

(66) A．same

B．similar

C．different

D．difference

(67) A．same

B．similar

C．different

D．difference

(68) A．consolidates

B．consists

C．considerate

D．consoles

(69) A．faced on

B．faced with

C．faced about

D．faced up to

(70) A．in general

B．in any term

C．in set terms

D．in terms of

A.-sin(e^x)+C

B.cos(e^x)+C

C.-cos(e^x)+C

D.sin(e^x)+C

A.e^xf'(e^x)

B.f'(u)

C.e^x[f(e^x)]'

D.f'(e^x)

A.sin(e^x)+C

B.-sin(e^x)+C

C.cos(e^x)+C

D.-cos(e^x)+C