ИНФР 91-120

Which Cisco technology prevents loops in a Layer 2 network?

• HSRP

• OSPF

• STP (Spanning Tree Protocol)

• EIGRP

What is the purpose of a trunk port in a Cisco switch?

• It carries multiple VLAN

• It blocks untagged frames

• sIt connects multiple end devices

• It isolates broadcast domains

Which protocol dynamically assigns IP addresses in a Cisco network?

• NAT

• ARP

• DHCP

• STP

How does Cisco’s EIGRP determine the best route?

• Uses only hop count

• Uses bandwidth and delay as primary metrics

• Uses link-state metrics

• Uses only administrative distance

What is the primary function of the Cisco ASA firewall?

• Only inspects outbound traffic

• Acts as a Layer 2 switch

• Provides stateful packet inspection

• Replaces the core router

What is a primary advantage of using a Type 1 hypervisor over a Type 2 hypervisor?

• It allows running multiple OS instances on a single OS

• It is easier to install on a personal computer

• It runs directly on hardware, improving performance

• It supports only Linux-based systems

Which component is essential for virtual machines to share physical resources efficiently?

• Network adapter

• Hypervisor

• CPU scheduler

• Load balancer

What is a snapshot in virtualization?

• A backup of the entire physical server

• A copy of only the active RAM state

• A saved state of a virtual machine at a point in time

• A duplication of all running VMs

Which feature allows a virtual machine to move between physical hosts without downtime?

• Load balancing

• Snapshot restoration

• Cold storage

• Live migration

Why is nested virtualization useful?

• It reduces the number of virtual machines needed

• It prevents host OS vulnerabilities from affecting VMs

• It allows running a hypervisor inside a VM

• It increases physical memory availability