Here you have the best Cisco 200-150 practice exam questions
Which three terms are used to describe data at Layers 1, 2, and 4 of the OSI model? (Choose three.)
At Layer 1 of the OSI model, the term 'Bits' is used to describe the data. At Layer 2, the data is referred to as 'Frames'. At Layer 4, the data is termed 'Segments'. These terms are standard across networking and accurately describe the different units of data at their respective layers.
Which two layers of the OSI model are combined in the Internet protocol suite application layer? (Choose two.)
In the OSI model, the layers that deal with application-level data handling and management are the Session (Layer 5), Presentation (Layer 6), and Application (Layer 7) layers. When these are mapped to the Internet protocol suite (TCP/IP model), they are all combined into the Application layer. Therefore, the two OSI layers that are combined in the Internet protocol suite application layer are the Session layer (Layer 5) and the Application layer (Layer 7).
Which two layers of the OSI model are combined in the Internet protocol suite network access layer? (Choose two.)
In the Internet protocol suite, also known as TCP/IP, the network access layer is responsible for the functions of both the Physical layer (Layer 1) and the Data Link layer (Layer 2) of the OSI model. These layers handle the hardware and protocols necessary for data transmission over a physical network, including modulation, signal generation, and framing of data packets.
In an IEEE 802.3 Ethernet frame, what is the significance of the DSAP field?
The DSAP (Destination Service Access Point) field in an IEEE 802.3 Ethernet frame indicates the network layer protocol that the frame's payload will be handed off to. It helps determine which network protocol the payload data should be processed by. While it is true that the DSAP field can indicate multiple protocols and can be followed by a SNAP header to specify more protocols, its primary role is to indicate the network layer protocol.
What action does a switch take if the destination MAC address is unknown?
When a switch receives a frame with an unknown destination MAC address, it floods the frame out of all ports except the one on which it was received. This process ensures that the frame has a chance to reach its intended recipient, which may then respond and allow the switch to learn the MAC address, updating its MAC address table accordingly.