01. After reloading a Cisco router for password recovery, what action is used to interrupt normal boot and enter recovery mode?
a) Start an SSH session
b) Copy the startup configuration to TFTP
c) Press the Break key during boot
d) Enter configure terminal
02. In a UCS environment, a blade server has lost its network data path to the upstream LAN, yet administrators can still log in and manage the system.
Which statement correctly describes the roles of the Fabric Interconnect and UCS Manager in this situation?
a) UCS Manager forwards the blade's production traffic, so a lost data path means UCS Manager has failed
b) The Fabric Interconnect carries the blade's production traffic to the LAN, while UCS Manager is the management software hosted on the Fabric Interconnect and does not itself forward that traffic
c) Because management access still works, the data path cannot actually be down and no further checks are needed
d) The Fabric Interconnect only stores service-profile configuration and never touches the data path
03. What is a key difference between Cisco IOS XE's Install Mode and Bundle Mode?
a) Bundle Mode extracts packages during boot, increasing boot time.
b) Install Mode requires more RAM during boot than Bundle Mode.
c) Install Mode does not support software sub-package patching.
d) Bundle Mode is the recommended method by Cisco for IOS XE devices.
04. While restoring service at a branch site, a field technician finds a patch cable that has been crushed under a heavy desk leg, and the switch port shows no link light.
At which OSI layer does this fault occur?
a) Layer 2, the data link layer
b) Layer 1, the physical layer
c) Layer 4, the transport layer
d) Layer 3, the network layer
05. A technician who normally uses the IOS boot system flash: command is asked to change the boot image on an NX-OS Nexus platform.
Which field note correctly describes the difference?
a) NX-OS manages the boot image through its install and boot commands rather than the IOS boot system flash: syntax
b) NX-OS relies only on verify /md5 to select the boot image
c) NX-OS uses the identical boot system flash: command as IOS
d) NX-OS devices cannot have their boot image changed in the field
06. A field technician configures a single access switch with three VLANs and connects no router or Layer 3 switch.
How many broadcast domains exist on that switch?
a) Three collision domains but only one broadcast domain
b) Three, because each VLAN is its own broadcast domain
c) Zero, because a Layer 3 device is required to form broadcast domains
d) One, because all ports share the same physical switch
07. Over an SSH session a technician adds a new access list to a router and confirms it is working. Before disconnecting, they run show startup-config and the access list is absent, even though show running-config shows it active.
What is the correct interpretation and next step?
a) The two files are meant to differ, so no action is required.
b) The startup-config in NVRAM is corrupt, so the router should be reloaded to rebuild it.
c) The change exists only in the running-config in RAM; run copy running-config startup-config to make it persistent.
d) The access list failed to apply, so it must be re-entered in global configuration mode.
08. During a password-recovery procedure on a Cisco router, the technician sets the configuration register to 0x2142 and reloads.
What does 0x2142 cause the router to do on the next boot?
a) Load the startup-config normally, exactly as 0x2102 does.
b) Boot while ignoring the startup-config in NVRAM.
c) Force the router to load its IOS image from a TFTP server.
d) Erase the startup-config permanently from NVRAM.
09. In Cisco UCS architecture, what are service profiles primarily used for?
a) To manage network security policies
b) To configure storage arrays
c) To set up user access controls
d) To define server hardware configurations
10. In a modular Cisco chassis switch, one module runs the operating system, builds the forwarding decisions, and manages the overall control plane for the other installed modules.
Which component performs this role?
a) The supervisor (route-processor) module
b) The fan tray that maintains airflow across the chassis
c) A line card that supplies interface ports and connects hosts to the switch
d) An uplink module that provides high-speed ports through pluggable transceivers
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