单选题Which of the following is a diplexer used for？（）A Allows two satellite tuners to use the same dish.B Connects the low noise block down converter （LNB） to the multi-switch.C Combines satellite and over the air （OTA） signals.D Allows one LNB to use two s

第1题：

第2题：

Which of the following cable types is used to transmit data from a satellite dish to the satellite modem?（）

• A、CAT5e
• B、CAT3
• C、Fiber
• D、RG-6

第3题：

第4题：

You need to decide on the best router redundancy protocol to use in the Company network.  Which  two statements are true about HSRP， VRRP， and GLBP？（）

• A、 GLBP and VRRP allow for MD5 authentication， whereas HSRP does not.
• B、 HSRP allows for multiple upstream active links being simultaneously used， whereas GLBP  does not.
• C、 GLBP allows for router load balancing of traffic from a network segment without the different  host IP configurations required to achieve the same results with HSRP.
• D、 Unlike HSRP and VRRP， GLBP allows automatic selection and simultaneous use of multiple  available gateways.
• E、 GLBP allows for router load balancing of traffic from a network segment by utilizing the creation  of multiple standby groups.

第5题：

When multiple PPP over Ethernet subscribers connect using the same DSL modem, which two attributes does the ERX use to differentiate between subscribers? （）(Choose two.)

• A、PPP session ID
• B、subscriber name
• C、source MAC address
• D、destination MAC address

第6题：

HSRP has been configured between two Company devices.  Which of the following describe  reasons for deploying HSRP？ （）

• A、 HSRP provides redundancy and fault tolerance
• B、 HSRP allows one router to automatically assume the function of the second router if the second  router fails
• C、 HSRP allows one router to automatically assume the function of the second router if the second  router starts
• D、 HSRP provides redundancy and load balancing

第7题：

Which two are true？（）

• A、 An encapsulated， public class promotes re-use.
• B、 Classes that share the same interface are always tightly encapsulated.
• C、 An encapsulated class allows subclasses to overload methods， but does NOT allow overriding methods.
• D、 An encapsulated class allows a programmer to change an implementation without affecting outside code.

第8题：

第9题：

Which of the following wiring standards would MOST likely be used to interconnect two devices without the use of a hub or switch?（）

• A、568A
• B、568B
• C、Crossover
• D、Loopback

第10题：

Which of the following is a diplexer used for？（）

• A、Allows two satellite tuners to use the same dish.
• B、Connects the low noise block down converter （LNB） to the multi-switch.
• C、Combines satellite and over the air （OTA） signals.
• D、Allows one LNB to use two satellites.