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多选题Which two statements are true about the protocols that are used for transmitting voice traffic？（）ARTP multiplexing is used to keep multiple phone conversations separateBRTP provides end-to-end delivery services for voice traffic.CUDP is used to ensure
题目
RTP multiplexing is used to keep multiple phone conversations separate
RTP provides end-to-end delivery services for voice traffic.
UDP is used to ensure a reliable transmission from sender to receiver.
RTP is used to provide resource reservation for the voice stream.
UDP provides multiplexing of multiple phone conversations.
相似问题和答案
第1题：
A. 1 is the default precedence.
B. A lower number is preferred.
C. A higher number is preferred.
D. 100 is the default precedence.
第2题：
Which two statements are true about the protocols that are used for transmitting voice traffic？（）
- A、RTP multiplexing is used to keep multiple phone conversations separate
- B、RTP provides end-to-end delivery services for voice traffic
- C、UDP is used to ensure a reliable transmission from sender to receiver
- D、RTP is used to provide resource reservation for the voice stream
- E、UDP provides multiplexing
正确答案:E
第3题：
A. PAT is not supported.
B. PAT is enabled by default.
C. It supports the address-persistent configuration option.
D. It supports the junos-global configuration option.
第4题：
Which statement is true about routing tables on a Junos device?（）
- A、They purge any routes not selected as active routes.
- B、They exist in two places: the Routing Engine and the Packet Forwarding Engine.
- C、They are exclusively designed to handle dynamic routing protocols.
- D、They populate the forwarding table.
正确答案:D
第5题：
Which two statements are true about IS -IS routing?（）
- A、Based on the default timers, OSPF d etects a failure faster than IS - IS does.
- B、OSPF default timers permit more tuning than IS - IS does.
- C、IS - IS is more efficient than OSPF in the use of CPU resources.
- D、OSPF is more scalable than IS - IS because of its ability to identify normal, stub, an d NSSA areas.
- E、IS - IS and OSPF are both Open Standard, link - state routing protocols which support VLSM.
正确答案:C,E
第6题：
You are about to migrate a customer network to use a VSS. Which of these statements is true about a VSS？ （）
- A、 The VSS switch must be the root bridge for all VLANs and is automatically designated
- B、 The VSS switch is defined in RFC 4318 as a managed object
- C、 The PAgP+ or LACP protocols are used to maintain the operational state of the VSS devices
- D、 A VSS interoperates with a virtual port channel
- E、 The 802.1Q or ISL protocols are used to maintain the operational state of the VSS devices
- F、 A VSS increases the size of the spanning-tree domain
正确答案:C
第7题：
Which two statements about VACLs on Cisco Nexus 7000 Series Switches are true？ （）
- A、 A single VACL can be shared across two or more VDCs.
- B、 Use of VACLs requires no special license to be installed.
- C、 VACLs make use of IP or MAC ACLs.
- D、 Only options drop and forward are permitted.
正确答案:B,C
第8题：
A. AH provides data integrity.
B. AH is identified by IP protocol 50.
C. AH is identified by IP protocol 51.
D. AH cannot work in conjunction with ESP
第9题：
Which two statements are true about L2TP tunnels?（） (Choose two.)
- A、Traffic is clear text
- B、Traffic is encrypted
- C、They are initiated by the LNS
- D、They are initiated by the LAC
正确答案:A,D
第10题：
Which two statements are true about traffic shaping？（）
- A、Out-of-profile packets are queued.
- B、It causes TCP retransmits.
- C、Marking/remarking is not supported.
- D、It does not respond to BECN and ForeSight Messages.
- E、It uses a single/two-bucket mechanism for metering.
正确答案:A,C