CH7

Question 1

What is an unmanaged switch?

Answer 1

Provides plug-and-play capability with minimal configuration options and has no IP addresses assigned to it.

Question 2

How can managed switches be configured?

Answer 2

Via a command-line interface or a web-based management GUI.

Question 3

What type of device is a Layer 3 switch?

Answer 3

Capable of interpreting layer 3 data and works like a router.

Question 4

What does port security on a switch do?

Answer 4

Protects against MAC flooding by allowing only one MAC address per port.

Question 5

What is the purpose of the Spanning Tree Protocol (STP)?

Answer 5

Prevents traffic loops by calculating paths that avoid potential loops.

Question 6

What are the five STP port states?

Answer 6

• Blocking * Listening * Learning * Forwarding * Disabled

Question 7

What is the function of a load balancer?

Answer 7

Distributes traffic intelligently among multiple devices.

Question 8

What is the definition of high availability (HA)?

Answer 8

A system that functions reliably nearly all the time.

Question 9

What does fault tolerance mean?

Answer 9

The capacity of a system to continue performing despite unexpected hardware or software malfunction.

Question 10

What is NIC teaming in Windows?

Answer 10

A group of redundant links that act as one logical interface.

Question 11

What is a hypervisor?

Answer 11

Creates and manages a virtual machine (VM).

Question 12

What are the two types of hypervisors?

Answer 12

• Type 1 - Bare-metal hypervisor * Type 2 - Hosted hypervisor

Question 13

What is bridged mode in VM networking?

Answer 13

A vNIC accesses the physical network using the host machine’s NIC.

Question 14

What are the advantages of virtualization?

Answer 14

• Efficient use of resources * Cost and energy savings * Fault and threat isolation * Simple backups, recovery, and replication

Question 15

What is the definition of cloud computing?

Answer 15

The flexible provision of data storage, applications, and services to multiple clients over a network.

Question 16

What is IaaS?

Answer 16

Infrastructure as a Service - Hardware services and network infrastructure devices provided virtually.

Question 17

What does the shared responsibility model refer to?

Answer 17

Responsibilities for cloud resources are distributed between the cloud provider and the cloud customer.

Question 18

What is infrastructure as code (IaC)?

Answer 18

The process of using text-based commands in a configuration file to create and manage cloud resources.

Question 19

What is the purpose of orchestration in network automation?

Answer 19

Automating many tasks to work together in a complex and lengthy workflow.

Question 20

What is a dynamic inventory in cloud design?

Answer 20

An infrastructure that is constantly adapting to changes and other criteria.

Question 21

In networking, what does east-west traffic refer to?

Answer 21

Traffic flow between peers within a network segment.

Question 22

What is a spine-and-leaf architecture?

Answer 22

A design where spine switches connect in a mesh topology with all leaf switches.

Question 23

What is the command used to disable a port on Cisco devices?

Answer 23

shutdown.

Question 24

What do vNICs connect to in a virtual machine?

Answer 24

They connect the VM to other machines and operate at the data link layer.

Question 25

What is the role of an SDN controller?

Answer 25

Integrates configuration and management control of all network devices into one cohesive system.

Question 26

What is the definition of north-south traffic?

Answer 26

Traffic that must leave the local segment to reach its destination.

Question 27

True or False: Virtualization increases complexity.

Answer 27

True.

Question 28

Fill in the blank: A _______ is a technique of grouping redundant resources so they appear as a single device.

Answer 28

clustering.

Question 29

What is the main advantage of STP?

Answer 29

Prevents traffic loops in a network.

Question 30

What does the term 'uptime' refer to?

Answer 30

The duration of time a system functions normally between failures.

Question 31

What is the process of using text-based commands in a configuration file to manage cloud resources called?

Answer 31

Infrastructure as Code ## Footnote Infrastructure as Code is essential for automating cloud resource management.

Question 32

What is a programmed, computer-generated response to a specific event referred to as?

Answer 32

Automation ## Footnote Automation can enhance efficiency in various tasks.

Question 33

List some tasks that can be automated.

Answer 33

* Patching systems * Applying updates or upgrades * Resizing or removing resources * Restarting or shutting down VM instances * Detecting signs of an attack

Question 34

What is the term for automating many tasks to work together in a complex workflow?

Answer 34

Orchestration ## Footnote Orchestration coordinates multiple automated tasks.

Question 35

What is a collection of tasks in a specific sequence defined in a template called?

Answer 35

Playbook ## Footnote Playbooks are used in orchestration to define workflows.

Question 36

What are the benefits of automation and orchestration?

Answer 36

* Responsiveness * Agility * Control * Costs * Security * Repeatability

Question 37

What does source control or version control track?

Answer 37

Changes to code ## Footnote Version control is essential for collaborative software development.

Question 38

What is a central repository?

Answer 38

A storage space that contains authoritative versions of the code ## Footnote Central repositories help manage code versions effectively.

Question 39

What is the environment called that is accessed by users?

Answer 39

Production environment ## Footnote The production environment is critical for live operations.

Question 40

What is created each time a new copy is made for development and testing?

Answer 40

Branch ## Footnote Branches allow for parallel development without conflicts.

Question 41

What is the process of uploading changes to the code called?

Answer 41

Commit ## Footnote Committing is a fundamental part of version control.

Question 42

What happens when proposed changes are incorporated into the production environment?

Answer 42

A new version of that development is created, documented, and stored ## Footnote This ensures transparency and traceability in changes.

Question 43

Which virtual network connection type assigns a VM its IP address from the physical network?

Answer 43

Bridged ## Footnote Bridged mode allows VMs to interact with the physical network directly.

Question 44

In which mode does a VM obtain IP addressing information from its host?

Answer 44

NAT ## Footnote NAT mode isolates VMs from the physical network.

Question 45

What is the DHCP service used for in host-only mode?

Answer 45

To obtain IP address assignments ## Footnote Host-only mode restricts access to the outside network.

Question 46

Why would a large organization choose to use a managed switch over an unmanaged switch?

Answer 46

To gain control over network traffic and improve performance ## Footnote Managed switches offer advanced features such as VLANs and monitoring.

Question 47

What should you be able to describe after the lesson?

Answer 47

* How to configure and manage switches in physical network architecture * Forms of virtualization technologies on a network * Cloud characteristics, models, and connectivity options * Roles of automation and orchestration in network management