WorksheetsNetwork Practical
Total questions: 41
Worksheet time: 21mins
What is Network Function Virtualization (NFV)?
A method of physically connecting multiple servers in a data center
A process of virtualizing all network devices and moving them into the hypervisor
A way to physically link multiple virtual servers
A method of installing physical routers and switches in a virtual environment
What is the main responsibility of the hypervisor in a virtualized network?
Managing physical server racks
Configuring physical switches and routers
Managing virtual machines and network connections
Installing and upgrading physical network devices
In Network Function Virtualization, what replaces physical network components like switches and routers?
Virtual CPUs
Virtual network interface cards (vNICs)
Virtual switches and routers
Physical network interface cards (NICs)
What feature allows you to add and remove virtual network devices like switches or routers through automation?
NetFlow
vNIC
Hypervisor API
Port mirroring
Which of the following is NOT a function of a virtual switch?
NetFlow
vNIC
Hypervisor API
Port mirroring
What is a vNIC used for in virtual machines?
To physically connect virtual machines to the network
To provide virtual machines access to the virtual network
To manage the hypervisor settings
To configure VLANs in the physical network
What term is used to describe the central location from which all virtual network and machine resources are managed?
Network Interface Card (NIC)
Single Pane of Glass
Virtual Machine Manager (VMM)
Data Center
What does the hypervisor manage access to for virtual systems?
VLANs, CPUs, and data centers
Memory, CPUs, and network connections
Firewalls, data storage, and VLANs
Routers, firewalls, and physical servers
How can a hypervisor facilitate adding a new virtual switch to the network?
Through physical installation of a network card
By clicking a few buttons in the hypervisor or using its API
What connects the virtual environment to the physical network in NFV?
Physical network interface cards (NICs)
Hypervisor uplinks
VLAN configurations
Port mirroring
What does a Virtual Machine Manager (VMM) manage in a virtualized environment?
Only physical network switches
Operating systems, virtual systems, and virtual network connections
Only virtual routers
Data storage and file management
Which feature allows multiple virtual switches and servers to share the network load effectively?
Port mirroring
VLAN tagging
Link Aggregation Control Protocol (LACP)
Firewall rules
What is the primary benefit of Network Function Virtualization (NFV)?
Reducing physical server costs by using virtual machines
Increased need for physical network cables
Building larger physical data centers
Replacing physical computers with personal devices
Which of the following is an advantage of using virtual switches over physical switches?
They are more difficult to configure
They can be deployed instantly via the hypervisor
They consume more power
They require physical cables for each connection
What is the purpose of port mirroring in a virtual network environment?
To monitor and capture traffic from one or more ports for analysis
To mirror the physical network into the virtual environment
To duplicate the virtual machines across multiple servers
To balance the load between different network connections
When configuring virtual network interface cards (vNICs), which of the following could be a key use?
Enhancing CPU performance
Enabling network communication for virtual machines
Managing physical routers
Running hypervisor updates
How does Network Function Virtualization (NFV) change the deployment of networking hardware?
It requires more physical routers to be installed
It replaces physical networking hardware with virtualized versions
It increases the number of physical switches needed
It relies solely on wireless networks
What is the role of the hypervisor's API in a virtualized network?
To allow physical server installations
To automate the deployment and removal of virtual network devices
To configure firewalls in physical data centers
To manage physical cable connections
Which of the following can be achieved using a virtual switch in a hypervisor-managed network?
VLAN configurations, port mirroring, and link aggregation
Installing physical routers
Adding extra physical cables for redundancy
Connecting directly to the internet without firewalls
What is the main purpose of a vNIC (virtual network interface card) in a virtual environment?
To provide connectivity between virtual machines and the physical network
To mirror physical network devices in the cloud
To install physical network switches
To reduce memory usage in virtual machines
What is a key advantage of a peer-to-peer network?
Easy administration
Low cost to implement
Centralized security management
High-speed performance
What is a primary disadvantage of peer-to-peer networks?
Centralized server requirement
High cost of installation
Difficult to administer and secure
Slow communication between devices
In a client-server model, how do clients communicate with each other?
Through direct peer-to-peer communication
Via the central server
By broadcasting messages to all clients
Through a personal area network (PAN)
What type of network would you typically find in a single office building?
Wide Area Network (WAN)
Metropolitan Area Network (MAN)
Local Area Network (LAN)
Campus Area Network (CAN)
Which network type is used to connect different buildings in the same city?
Campus Area Network (CAN)
Local Area Network (LAN)
Metropolitan Area Network (MAN)
Personal Area Network (PAN)
What type of network typically provides slower throughput than a local area network?
Campus Area Network (CAN)
Wide Area Network (WAN)
Wireless Local Area Network (WLAN)
Personal Area Network (PAN)
What technology is commonly used to create dynamic connections in a wide area network (WAN)?
MPLS
Dynamic Multipoint VPN (DMVPN)
Ethernet
SAN
What does MPLS use to route and forward data in a wide area network?
IP subnets
Point-to-point connections
Label switching
Static routing
What is the key feature of a software-defined wide area network (SDWAN)?
It provides cloud-based services
It allows dynamic VPN creation
It defines routing based on data types and needs
It eliminates the need for a central data center
What is the main difference between a NAS and a SAN?
NAS is a file-level storage, while SAN is a block-level storage.
NAS is used for personal storage, while SAN is used for enterprise storage.
NAS is faster than SAN.
NAS and SAN are the same.
NAS allows block-level access, while SAN allows file-level access. SAN allows block-level access, while NAS allows file-level access. NAS is used in personal networks, while SAN is used in enterprise networks. SAN is used for backups, while NAS is used for streaming data.
NAS allows block-level access, while SAN allows file-level access
SAN allows block-level access, while NAS allows file-level access
NAS is used in personal networks, while SAN is used in enterprise networks
SAN is used for backups, while NAS is used for streaming data
What is a common feature of a star topology?
Devices are directly connected to each other
Devices connect to a central hub or switch
Devices form a ring to provide redundancy
Devices communicate through a single bus cable
Which network topology provides redundancy by looping back traffic when a connection is severed?
Star
Ring
Bus
Mesh
Why did early Ethernet networks move away from using a bus topology?
Because bus networks were too expensive
Because a single break in the bus could cause network failure
Because bus networks did not support wireless communication
Because bus networks were too slow
In modern automobiles, which type of network is used to connect sensors and controllers?
Star topology
Ring topology
What is the key advantage of a mesh topology?
Low cost of implementation
Redundancy and fault tolerance
Easy setup and minimal cabling
Direct connection between all devices
What type of network topology is most commonly used for IoT (Internet of Things) devices?
Star
Ring
Mesh
Bus
What is a hybrid network topology?
A network that only uses a star topology
A network that combines two or more different topology types
A network that only uses a ring topology for redundancy
A network that only uses ad hoc wireless communication
What type of wireless network allows devices to communicate directly without using an access point?
Infrastructure
Ad hoc
In a mesh network, what is the advantage of self-healing?
It increases the range of the network
It ensures the network continues to function even if a device goes offline
It reduces the overall number of devices needed
It makes the network immune to security threats
What topology is typically used in switched Ethernet networks?
Mesh
Star
Ring
Bus
