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| Section | Objectives |
|---|---|
| Topic 1: Device Installation and Configuration | - Install equipment
|
| Topic 2: Device Maintenance and Support | - Perform component diagnostics and replacement
|
| Topic 3: Security and Device Access | - Configure basic security features
|
| Topic 4: Network Operations and Support | - Network fundamentals for field technicians
|
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NEW QUESTION # 47
What does OIR stand for in the context of Cisco ASR component replacement?
Answer: D
Explanation:
Online Insertion and Removal (OIR)is a feature supported by Cisco ASR routers that allows for the insertion and removal of hardware components, such as line cards and modules, while the router is operating.
Thiscapability enables maintenance and upgrades without the need to power down the system, thus minimizing network downtime.
Key aspects of OIR include:
* Seamless Operation:OIR allows for hardware changes without interrupting the router's operation.
* Preservation of Routing Information:The router maintains all routing information and active sessions during the insertion or removal process.
* Administrative Shutdown:While not mandatory, it is recommended to administratively shut down the interfaces associated with the component being removed to ensure a graceful transition.
This feature is particularly beneficial in high-availability environments where maintaining continuous network service is critical.
Reference:Supporting Cisco Devices for FieldTechnicians (FLDTEC) - Maintenance and RMA Procedures
NEW QUESTION # 48
Which two actions ensure a smooth transition to the new hardware when replacing a Cisco UCS C-Series Rack-Mount Server? (Choose two.)
Answer: A,E
Explanation:
To ensure asmooth replacementof a Cisco UCS C-Series Rack-Mount Server, two critical actions are:
* Back up the server configuration using the Cisco Integrated Management Controller (CIMC):
This preserves all configuration data such as BIOS settings, RAID setup, and network configuration.
After replacing the hardware, this configuration can be restored to minimize setup time.
* Decommission the server if it is integrated in a Cisco UCS domain: Before physically replacing the server, decommissioning it ensures the UCS Manager properly releases it from the inventory, preventing configuration conflicts or orphaned profiles.
Other options, like reconfiguring DHCP or disabling firewalls, are not required procedures for a UCS C- Series hardware swap.
Reference:Supporting Cisco Devices for Field Technicians (FLDTEC) - Maintenance and RMA Procedures
NEW QUESTION # 49
Which command is used to determine if there is sufficient space in the memory of a device before installing a new Cisco IOS image?
Answer: D
Explanation:
Theshow flash:command is used todisplay the contents of the device's flash memory, which is where the Cisco IOS image is typically stored. By issuing this command, a technician can verify available space and determine whether there is enough capacity to accommodate a new IOS image before initiating an upgrade or image replacement process.
This command provides a detailed listing of files, their sizes, and the total and available memory space within the flash file system.
* show file-systemlists all available file systems but doesn't detail their content.
* show memoryshows runtime memory usage (RAM), not flash memory.
* show storageis not a standard IOS command.
Reference:Supporting Cisco Devices for Field Technicians (FLDTEC) - Cisco IOS Software Basics
NEW QUESTION # 50
How many bits are borrowed from the default host portion of the address to create subnets in a Class B network with a subnet mask 255.255.255.0?
Answer: B
Explanation:
In a Class B network, the default subnet mask is 255.255.0.0, which allocates:
16 bits for the network portion
16 bits for the host portion
When the subnet mask is changed to 255.255.255.0, it becomes:
24 bits for the network portion
8 bits for the host portion
This indicates that 8 bits have been borrowed from the host portion to create additional subnets. Borrowing bits allows for the division of the original network into smaller sub-networks, enhancing organization and security within the network.
NEW QUESTION # 51
Which two actions are typically performed in ROMMON mode during the password recoveryprocess?
(Choose two.)
Answer: A,E
Explanation:
During the password recovery process on Cisco devices, ROMMON (ROM Monitor) mode is utilized to perform specific actions that facilitate the recovery. Two critical actions typically performed in ROMMON mode are:
* Change the Configuration Register:The configuration register is modified to instruct the device to ignore the startup configuration during the next boot. This is commonly achieved by setting the configuration register to0x2142. This action prevents the device from loading the saved configuration, allowing access without requiring the existing passwords.
* Reboot the Device:After changing the configuration register, the device is rebooted to apply the new settings. This reboot enables the device to bypass the startup configuration, facilitating the password recovery process.
These steps are essential in the password recovery procedure, allowing administrators to regain access to the device without erasing the existing configuration.
Reference:Supporting Cisco Devices for Field Technicians (FLDTEC) - Troubleshooting Methodologies
NEW QUESTION # 52
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