单选题Which packet type is used to ackno wledge LSPs on point - to - point links and to request missing pieces of information in the IS - IS link -state database?（）A complete SNP (CSNP)B partial SNP (PSNP)C helloD database queryE database description packet

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第2题：

Which OSPF LSA is used to support MPLS traffic engineering？（）

• A、opaque LSA （Type 8）
• B、opaque LSA （Type 9）
• C、link LSA （Type 1）
• D、network LSA （Type 2）
• E、opaque LSA （Type 10）

正确答案:E

第3题：

Which type of firewall is needed to open appropriate UDP ports required for RTP streams？（）

• A、Stateful firewall
• B、Proxy firewall
• C、Packet filtering firewall
• D、Stateless firewall

正确答案:A

第4题：

Which three statements about Label-Switched Paths （LSPs） are true？ （）

• A、 LSPs are bidirectional.
• B、 LSPs are unidirectional.
• C、 LSPs can be signaled by CAC.
• D、 LSPs can be configured explicitly.
• E、 LSPs can be configured dynamically.

正确答案:B,D,E

第5题：

You work as a network technician at Company. Your boss， Ms.， is interested  LWAPP （Lightweight Access Point Protocol）. In particular she wants to know which type of  activities this protocol defines.  What should you tell her？ （）

• A、 Layer 3 addressing and distribution
• B、 SNMP monitoring services
• C、 Access point certification and software control
• D、 Packet encapsulation， fragmentation， and formatting
• E、 Compression and Layer 3 address mapping
• F、 User behaviors

正确答案:C,D

第6题：

What is the purpose of the OSPF router ID in a OR/BOR election?（）

• A、It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point network
• B、It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router
• C、It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access network
• D、It is used to determine which interfaces will send Hello packets to neighboring OSPF routers

正确答案:C

第7题：

Which of these tables is used by an LSR to perform a forwarding lookup for a packet destined to an address within an RFC 4364 VPN？（）

• A、CEF
• B、FIB
• C、LFIB
• D、IGP

正确答案:C

第8题：

Which of the following type of lamp is used for heating a fuser？（）

• A、Xenon
• B、Halogen
• C、Incandescent
• D、Light Emitting Diode

正确答案:B

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第14题：

Which packet type is used to ackno wledge LSPs on point - to - point links and to request missing pieces of information in the IS - IS link -state database?（）

• A、complete SNP (CSNP)
• B、partial SNP (PSNP)
• C、hello
• D、database query
• E、database description packet (DDP)

正确答案:B

第15题：

Which of the following solutions will detect and disable a rogue access point?（）

• A、Port scan
• B、Packet sniffer
• C、IPS
• D、IDS

正确答案:C

第16题：

Which two LSA types can be used to aggregate inter-area routes?（）

• A、Type 2
• B、Type 3
• C、Type 4
• D、Type 5
• E、Type 9

正确答案:B,D

第17题：

When running IP SLA， which application type should be used if you want to know round-trip delay， jitter， and packet loss for the full path？（）

• A、ICMP path echo
• B、UDP echo
• C、ICMP path jitter
• D、Application Performance Monitor
• E、TCP connect

正确答案:C

第18题：

When selecting a Network Interface Card (NIC), which of the following factors need to be considered?（）

• A、The type of application used on the network
• B、The type of system bus used by the computers
• C、The type of memory installed in each computer
• D、The type of media used in the network topology
• E、The type of protocols used in the network
• F、The physical layout of the network hosts

正确答案:B,D,F

第19题：

Which of the following would be used to optimize network performance and increase bandwidth availability?（）

• A、Packet analysis
• B、QoS
• C、Traffic shaping
• D、Fault tolerance

正确答案:C

第20题：

Which of the following commands will list available paging space on a system?（）

• A、lsps
• B、lsps -a
• C、lsps -pg
• D、lsps ALL

正确答案:B

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