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Refer to the exhibit. What are two identifications for the hardware components? (Choose two.)
* The label '1' points to a rectangular port on the laptop. This is consistent with the shape of a USB Type A port.
* The cable labeled '2' has an RJ-45 connector on one end and a USB Type A connector on the other end.
Incorrect Answers:
* C. 2 is a USB 5-pin mini USB Type B to USB Type A console cable: The connector on the cable labeled '2' is not a mini USB Type B connector. It is a standard RJ-45 connector.
* D. 3 is a USB Type A port: The label '3' points to a port on the server that is not visible in the image. Therefore, we cannot identify the type of port it is.
* E. 3 is a USB 5-pin mini USB Type B port: Same as D, we cannot identify the type of port labeled '3' due to lack of visibility in the image.
Which layer of the OSI model defines how data is formatted for transmission and how access to the physical media is controlled?
Which type of port on a laptop is used to connect to an Ethernet port on a Cisco switch?
RJ-45 is the standard connector used for Ethernet networks. Here's why it's the correct answer:
Compatibility: Ethernet ports on both laptops and Cisco switches use RJ-45 connectors. This makes RJ-45 cables ideal for direct connections between these devices.
Appearance: RJ-45 ports are rectangular and slightly larger than typical phone jacks (RJ-11). They have eight metal pins inside.
Why other options are incorrect:
DVI: DVI ports are used for video connections between computers and displays.
RJ-11: RJ-11 ports are primarily associated with analog phone lines and are smaller than RJ-45.
DB-9: DB-9 connectors were traditionally used for serial connections on older computers and peripherals.
Which Xmodem option is used to enhance error checking of an image that is copied to flash memory?
The -c option in Xmodem file transfers is used to enable CRC (Cyclic Redundancy Check) for enhanced error checking. Here's why it's the correct answer:
Error Detection: CRC is a more robust error detection mechanism compared to the standard checksum method used in Xmodem. It provides greater reliability in identifying file corruption during the transfer.
Flash Memory: Since flash memory on a Cisco router or switch stores critical data like configuration files or the IOS image, ensuring the integrity of transferred files is crucial.
Why other options are incorrect:
-e, -r, -x: These are not standard Xmodem options for error checking purposes. While some implementations may have custom flags, they are not universally applicable.
Important Note: Xmodem is a legacy protocol that is often replaced by more reliable options like TFTP in modern Cisco devices. However, understanding Xmodem options is still relevant for certain cases or older equipment.
Xmodem overview: https://en.wikipedia.org/wiki/XMODEM
Cyclic Redundancy Check (CRC): https://en.wikipedia.org/wiki/Cyclic_redundancy_check
