网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
What are the header sizes for point-to-point and multi-point GRE（also known asmGRE） with tunnel key？（）
A
4 bytes for both
B
4 bytes， and 8 bytes respectively
C
8 bytes for both
D
24 bytes for both
参考答案
参考解析
解析：
暂无解析
更多 “单选题What are the header sizes for point-to-point and multi-point GRE（also known asmGRE） with tunnel key？（）A 4 bytes for bothB 4 bytes， and 8 bytes respectivelyC 8 bytes for bothD 24 bytes for both” 相关考题
考题
In a Bridged 1483 network, what Layer 2 encapsulations are passed between the DSL bridge and the ERX?()
A. single ATM headerB. single Ethernet headerC. ATM header followed by a PPP headerD. ATM header followed by an Ethernet header
考题
What are two characteristics of Frame Relay point-to-point subinterfaces?（）A、They create split-horizon issuesB、They require a unique subnet within a routing domainC、They emulate leased linesD、They are ideal for full-mesh topologiesE、They require the use of NBMA options when using OSPF
考题
On what kinds of networks does OSPF elect a backup designated router?（）A、Point-to-point and point-to-multipoint networksB、Nonbroadcast and broadcast multipoint multicastingC、Point-to-point and multi-access broadcastingD、Point-to-multipoint and multi-access broadcastingE、Nonbroadcast and broadcast multi-access
考题
What are disadvantages of Network Address Translation Transparency?（）A、There is no disadvantage.B、It will add 16 bytes per packet of overhead(8 bytes UDP header, and 8 bytes of NON-IKE Marker).C、It will add 36 bytes per packet of overhead (20 bytes of IP header, 8 bytes of UDP header, 8 bytes of NON-IKE Marker).D、It will require that both crypto peers support this feature in the IOS version. Both crypto peers must also have this feature enabled.
考题
What are the two components of HTTP acceleration? （）(Choose two.)A、cachingB、prefetchC、header cachingD、content or entity caching
考题
Using the G.729 codec and the default cRTP configuration， what is the approximate VoIP bandwidth savings across a Frame Relay link that adds a 6 byte frame header？"（）A、 55%B、 58%C、 60%D、 63%
考题
What are two reasons for packet loss on a VoIP connection？（）A、serialization delayB、overrunC、full buffers and queuesD、propagation delayE、shaping delayF、TCP header errors
考题
What is true about Quality of Service （QoS） for VPNs？（）A、QoS preclassification is only supported on generic routing encapsulation （GRE） and IPsec VPNsB、QoS preclassification is not required in Layer 2 Tunneling Protocol （L2TP）， Layer2 Forwarding （L2F）， and Point-to-Point Tunneling Protocol （PPTP） VPNsC、QoS preclassification is supported on IPsec AH VPNs， but not on IPsec ESP VPNsD、the QoS-for-VPNs feature （QoS preclassification） is designed for VPN transport interfacesE、with IPsec tunnel mode， the type of service （ToS） byte value is copied automatically from the original IP header to the tunnel header
考题
What is the advantage of using a multipoint interface instead of point-to-point subinterfaces when configuring a Frame Relay hub in a hub-and-spoke topology?（）A、it avoids split-horizon issues with distance vector routing protocols.B、IP addresses can be conserved if VLSM is not being used for subnetting.C、A multipoint interface offers greater security compared to point-to-point subinterface configurations.D、The multiple IP network addresses required for a multipoint interface provide greater addressing flexibility over point-to-point configurations.
考题
A default Frame Relay WAN is classified as what type of physical network?（）A、point-to-point B、broadcast multi-access C、nonbroadcast multi-access D、nonbroadcast multipoint E、broadcast point-to-multipoint
考题
What are two QoS mechanisms that are used to prevent packet loss？（）A、header compressionB、payload compressionC、low latency queuing （LLQ）D、weighted random early detection （WRED）E、traffic policingF、traffic shaping
考题
What are two major sources of delay that can be managed by QoS in voice-enabled networks？（）A、propagation delayB、voice packet serialization delayC、congested egress queuesD、header overheadE、packets dropped because of CRC errors
考题
Refer to the exhibit. What is the configuration an example of？（）A、enabling modular QoS over Frame RelayB、enabling Real-Time Transport Protocol （RTP） header compressionC、enabling distributed compressed Transmission Control ProtocolD、enabling latency and jitter reduction for Transmission Control trafficE、enabling TCP header compression
考题
What are the header sizes for point-to-point and multi-point GRE（also known asmGRE） with tunnel key？（）A、 4 bytes for bothB、 4 bytes， and 8 bytes respectivelyC、 8 bytes for bothD、 24 bytes for both
考题
When an SRX series device receives an ESP packet, what happens?（）A、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, it willB、If the destination IP address in the outer IP header of ESP does not match the IP address of the ingress interface, it willC、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based packet.D、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based of inner header, it will decrypt the packet.
考题
单选题During OSPF adjacency formation， what state is a router in when it is sending LSA header information to its neighbor？ （）A
InitB
2WayC
ExStartD
Exchange
考题
单选题Refer to the exhibit. What is the configuration an example of？（）A
enabling modular QoS over Frame RelayB
enabling Real-Time Transport Protocol （RTP） header compressionC
enabling distributed compressed Transmission Control ProtocolD
enabling latency and jitter reduction for Transmission Control trafficE
enabling TCP header compression
考题
单选题Why is IPv6 packet processing more effective than IPv4 packet processing?（）A
fixed header sizeB
smaller header sizeC
fewer header fieldsD
variable header size
考题
单选题When an SRX series device receives an ESP packet, what happens?（）A
If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, it willB
If the destination IP address in the outer IP header of ESP does not match the IP address of the ingress interface, it willC
If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based packet.D
If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based of inner header, it will decrypt the packet.
考题
多选题What are two reasons for packet loss on a VoIP connection？（）Aserialization delayBoverrunCfull buffers and queuesDpropagation delayEshaping delayFTCP header errors
考题
多选题In the output of show isis adjacency， what are three valid items that can be displayed under the attributes header？（）AIS typeBattachedCoverloadDarea addresses
考题
单选题What is the advantage of using a multipoint interface instead of point-to-point subinterfaces when configuring a Frame Relay hub in a hub-and-spoke topology?（）A
it avoids split-horizon issues with distance vector routing protocols.B
IP addresses can be conserved if VLSM is not being used for subnetting.C
A multipoint interface offers greater security compared to point-to-point subinterface configurations.D
The multiple IP network addresses required for a multipoint interface provide greater addressing flexibility over point-to-point configurations.
考题
单选题An ERX Edge Router is operating in an MPLS network using interface label space.What is used to make a forwarding decision?（）A
EXP bitsB
VPI / VCIC
shim headerD
SNAP header
考题
单选题In a Bridged 1483 network, what Layer 2 encapsulations are passed between the DSL bridge and the ERX?（）A
single ATM headerB
single Ethernet headerC
ATM header followed by a PPP headerD
ATM header followed by an Ethernet header
考题
多选题What are disadvantages of Network Address Translation Transparency?（）AThere is no disadvantage.BIt will add 16 bytes per packet of overhead(8 bytes UDP header, and 8 bytes of NON-IKE Marker).CIt will add 36 bytes per packet of overhead (20 bytes of IP header, 8 bytes of UDP header, 8 bytes of NON-IKE Marker).DIt will require that both crypto peers support this feature in the IOS version. Both crypto peers must also have this feature enabled.
考题
单选题Using the G.729 codec and the default cRTP configuration， what is the approximate VoIP bandwidth savings across a Frame Relay link that adds a 6 byte frame header？"（）A
55%B
58%C
60%D
63%
热门标签
最新试卷