A: session layer Protocol
B: transport layer Protocol
C: data link layer Protocol
举一反三
- VPN技术采用的隧道协议包括 A: PPTP（Point to Point Tunneling Protocol) B: L2TP (Layer 2 Tunneling Protocol) C: IPSec (Internet Protocol Security) D: HTTP (Hyper Text Transfer Protocol over SecureSocket Layer)
- When an IP packet is Layer 3-switched from a source in one VLAN to a destination in another VLAN,which field in a packet will be rewritten? （） A: Layer 2 TTL B: Layer 3 TTL C: Layer 3 source address D: Layer 3 transport protocol E: Layer 3 destination addre
- 如下图，一名管理员ping默认网关发现如下输出，最有可能是那一层OSI出问题？（） A: data link layer B: application layer C: access layer D: session layer E: network layer
- Which type of IGP should you use to achieve scalability in a large enterprise network？（） A: link-state protocol B: path-vector protocol C: Bellman-Ford protocol D: distance-vector protocol
- Under which two circumstances should Spanning Tree Protocol be implemented？ （） A: to ensure a loop-free topology B: to protect against user-side loops C: when a VLAN spans access layer switches D: for the most deterministic and highly available network topology E: because of the risk of lost connectivity without Spanning Tree Protocol
内容
- 0
TCP/IP( Transmission Control Protocol/Internet Protocol)
- 1
ARP指的是（ ） A: Address Resolution Protocol B: Address repeat Pattern C: Address Ring Protocol D: Adaptive Reset Protocol
- 2
(7-2)下面哪个是合法的URL格式?() A: protocol://resourceName/host:port/ B: protocol://port:host/resourceName C: protocol://host:port/resourceName D: protocol://resourceName:port/host
- 3
Which OSI layer handles flow control, data segmentation, and reliability A: Application B: Physical C: Transport D: Data Link
- 4
Flow control is one of the basic functions of the data link layer. Regarding flow control, which one is correct among following statements? A: Only the data link layer has flow control B: Not only the data link layer has flow control, but the flow control objects of each layer are the same C: Not only does the data link layer have flow control, but the flow control objects of each layer are different D: None of the above is right