CCNA 1 v7.0 Curriculum: Module 6 – Data Link Layer
网页2020年4月1日 · The data link layer of the OSI model (Layer 2), as shown in the figure, prepares network data for the physical network. The data link layer is responsible for network interface card (NIC) to network interface card communications. The data link layer does the following: Enables upper layers to access the media.
6.4.2 Module Quiz – Data Link Layer (Answers) - ITExamAnswers
网页2020年3月30日 · RJ-45 port. TCP/IP protocol stack. Explanation: The data link layer describes media access and physical addressing. The encoding of a MAC address on a NIC places it at that layer. Ports and cables are placed at the physical layer of the OSI model. IP addresses are placed at the network layer. The TCP/IP protocol stack describes a …
Purpose of the Data Link Layer Answers - ITExamAnswers
网页2022年6月13日 · Explanation: The data link layer consists of two sublayers. These are Logical Link Control (LLC) and Media Access Control (MAC) 3. What is the responsibility of the MAC sublayer? Adds Layer 3 addresses to the frame. Communicates with the network layer (Layer 3) Provides the method to get the frame on and off the media.
Which two functions are performed at the LLC sublayer of the OSI …
网页2020年3月18日 · Explanation: The data link layer is actually divided into two sublayers: + Logical Link Control (LLC): This upper sublayer defines the software processes that provide services to the network layer protocols. It places information in the frame that identifies which network layer protocol is being used for the frame.
Which two statements describe the services provided by the data …
网页2020年3月4日 · Explanation: The data link layer is divided into two sub layers, namely Logical Link Control (LLC) and Media Access Control (MAC). LLC forms a frame from the network layer PDU into a format that conforms to the requirements of the network interface and media. A network layer PDU might be for IPv4 or IPv6.
6.3.5 Check Your Understanding – Data Link Frame Answers
网页2022年6月13日 · 1. What does the data link layer add to a Layer 3 packet to create a frame? (Choose two.) Explanation: The data link layer adds a header which contains the source and destination Layer 2 address and a trailer that contains a frame check sequence (FCS). 2. What is the function of the last field in a data link layer frame?
Module 2.3.3 Data Link Layer Quiz Answers - ITExamAnswers
网页2022年12月18日 · Explanation: In CSMA/CA, the device examines the media for the presence of a data signal. If the media is free, the device sends a notification across the media of its intent to use it. The device then sends the data. This method is used by 802.11 wireless networking technologies. 8.
Which two functions are performed at the MAC sublayer of the …
网页2020年11月17日 · Enables IPv4 and IPv6 to utilize the same network interface and media. Adds Layer 2 control information to network protocol data. Integrates various physical technologies. Communicates between the networking software at the upper layers and the device hardware at the lower layers. Provides synchronization between source and …
Which two functions are performed at the MAC sublayer of the …
网页2020年3月18日 · A network administrator uses the command ip route 172.18.0.0 255.255.0.0 S0/0/1 to configure a floating static route on a router.
How does the network layer use the MTU value? - ITExamAnswers
网页2020年3月30日 · The network layer depends on the higher level layers to determine the MTU. The network layer depends on the data link layer to set the MTU, and adjusts the speed of transmission to accommodate it. The MTU is passed to the network layer by the data link layer. To increase speed of delivery, the network layer ignores the MTU.