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- 1. Multiple Choice
You are in the process of configuring an iSCSI storage area network (SAN) for your network.
You want to configure a Windows Server 2016 system to connect to an iSCSI target defined on a different server system. You also need to define iSCSI security settings, including CHAP and IPsec.
Which tool should you use?
Multipath I/O
iSCSI under File and Storage Services in Server Manager
Internet Storage Name Service
iSCSI Initiator
- 2. Multiple Choice
Which of the following does not accurately describe an iSCSI SAN?
Needs dedicated Ethernet cabling.
Can be implemented on a standard production network with other network traffic.
Can authenticate connections and encrypt data transmissions.
Uses port 3260 by default.
- 3. Multiple Choice
Which of the following are typical components of a NAS device? (Select two.)
One or more NICs
A minimal network OS
An FC switch
A dedicated network
Initiator server
- 4. Multiple Choice
Which VoIP device helps establish the connection between two VoIP phones?
VoIP server
VoIP gateway
VoIP endpoint
VoIP codec
- 5. Multiple Choice
What are other names for a VoIP server? (Select two.)
QoS
Jitter
Hard phone
IP-PBX
VoIP PBX
- 6. Multiple Choice
What is one benefit of placing VoIP gateways in geographically separated branch offices that have an existing WAN connection?
VoIP gateways can aggregate multiple VoIP calls for more efficient transmission to the home office.
Less costly VoIP gateways can be used in place of expensive routers and modems to provide WAN connectivity.
Data can be transported between VoIP gateways over the PSTN instead of via the expensive WAN.
Long-distance PSTN charges can be reduced by switching VoIP calls to the PSTN in locations where only local call charges would be incurred.
- 7. Multiple Choice
When would you consider changing the codec used in your VoIP system? (Select two.)
When an open source VoIP protocol requires a different codec.
When sound quality is poor.
When VoIP data consumes too large a portion of your network bandwidth.
When network latency causes callers to talk over each other.
When excessive jitter causes unusual sound effects in VoIP calls.
- 8. Multiple Choice
How can QoS be configured so that large data transfers will not block VoIP calls by using too much network bandwidth?
QoS can be configured on network devices to give priority to VoIP traffic.
QoS can be configured on network devices to limit the size of a file that can be transferred on the network.
QoS can be configured on network devices to only allow network protocols that throttle network bandwidth usage.
QoS can be configured on network devices to set a bandwidth threshold on selected ports.
- 9. Multiple Choice
Upper management has asked you if there is a way to integrate phone calls, emails, and instant messaging into a single platform. Which of the following systems should you recommend?
Unified communication
Voice over IP
Quality of service
PSTN
- 10. Multiple Choice
Which of the following protocols is an open source protocol used by most manufacturers of VoIP systems?
Transmission control protocol (TCP)
User datagram protocol (UDP)
Stream control transmission protocol (SCTP)
Session initiation protocol (SIP)
- 11. Multiple Choice
Which of the following protocols is used by VoIP to set up, maintain, and terminate a phone call?
SSH
TLS
NTP
RTP
SIP
- 12. Multiple Choice
Your company uses VoIP for phone calls. Recently, employees have been complaining about phone calls with unusual sound effects. Which type of problem is occurring on the VoIP system?
Latency
Jitter
Packet loss
Echo
- 13. Multiple Choice
You are on a phone call using VoIP. You notice that it takes several seconds for the person on the other end to respond to questions you ask. Which type of problem is occurring?
Jitter
Echo
Latency
Packet loss
- 14. Multiple Choice
What is a soft phone?
A software application that runs on a computer or other device that accesses a VoIP server to make real-time phone calls.
A traditional or VoIP phone that has a padded handset that is more comfortable for a user.
A device that converts fax calls and other soft calls between the PSTN and an IP network.
A software algorithm that compresses VoIP data prior to transmission on an IP network.
- 15. Multiple Choice
Which switch features are typically used with VoIP? (Select two.)
PoE
VLAN
Spanning tree
Mirroring
- 16. Multiple Choice
Which of the following features is used with digital IP phones to supply power through a switch port?
PoE
VPN
Trunking
802.1x
Spanning tree
- 17. Multiple Choice
In virtualization, what is the role of the hypervisor?
A hypervisor is created within the host operating system and simulates a hard disk for the virtual machine.
A hypervisor is a software implementation that executes programs like a physical machine.
A hypervisor has the actual hardware in place on the machine, such as the hard disk drive(s), optical drive, RAM, and motherboard.
A hypervisor allows virtual machines to interact with the hardware without going through the host operating system.
- 18. Multiple Choice
What type of virtualization completely simulates a real physical host?
Paravirtualization
Partial virtualization
Full virtualization
Semi-virtualization
- 19. Multiple Choice
Which component is most likely to allow physical and virtual machines to communicate with each other?
VHD
Host operating system
Virtual switch
Virtual desktop
- 20. Multiple Choice
Which of the following are advantages of virtualization? (Select two.)
Centralized administration
Improved detection of host-based attacks
Reduced utilization of hardware resources
Redundancy of hardware components for fault tolerance
Easy system migration to different hardware
- 21. Multiple Choice
You need to provide DHCP and file share services to a physical network. These services should be deployed using virtualization. Which type of virtualization should you implement?
Virtual servers
Virtual desktops
Virtual networks
Network as a service (NaaS)
- 22. Multiple Choice
You are an application developer. You use a hypervisor with multiple virtual machines installed to test your applications on various operating system versions and editions.
Currently, all of your testing virtual machines are connected to the production network through the hypervisor's network interface. You are concerned that the latest application you are working on could adversely impact other network hosts if errors exist in the code.
To prevent problems, you decide to isolate the virtual machines from the production network. However, they still need to be able to communicate directly with each other.
What should you do? (Select two. Each response is one part of the complete solution.)
Create a new virtual switch configured for host-only (internal) networking.
Disconnect the network cable from the hypervisor's network interface.
Connect the virtual network interfaces in the virtual machines to the virtual switch.
Disable the switch port that the hypervisor's network interface is connected to.
Create a new virtual switch configured for bridged (external) networking.
- 23. Multiple Choice
You are responsible for maintaining Windows workstation operating systems in your organization. Recently, an update from Microsoft was automatically installed on your workstations that caused an in-house application to stop working.
To keep this from happening again, you decide to test all updates on a virtual machine before allowing them to be installed on production workstations.
Currently, none of your testing virtual machines has a network connection. However, they need to be able to connect to the update servers at Microsoft to download and install updates.
What should you do? (Select two. Each response is one part of the complete solution.)
Create a new virtual switch configured for host-only networking.
Connect the virtual network interfaces in the virtual machines to the virtual switch.
Disable the switch port that the hypervisor's network interface is connected to.
Create a new virtual switch configured for bridged (external) networking.
Create a new virtual switch configured for internal networking.
- 24. Multiple Choice
What key advantage does a virtual router have over a physical router?
Routing protocols are not necessary for routing data between networks.
Multiple networks can be connected to a single interface.
Faster routing performance.
Allows the virtual router redundancy protocol (VRRP) to be used.
- 25. Multiple Choice
You want to be able to monitor and filter VM-to-VM traffic within a virtual network. What should you do?
Create a virtual router with VRF technology.
Route VM-to-VM traffic through a physical firewall and back to the virtual network.
Define VLAN memberships on each VM.
Implement a virtual firewall within the hypervisor.
- 26. Multiple Choice
Which of the following statements about virtual NICs are true? (Select two.)
Virtual NICs don't have a MAC address.
Virtual NICs need the appropriate driver installed to function.
Multiple virtual NICs can be added to a virtual machine.
Virtual NICs can only communicate with other virtual NICs.
The type of NIC installed in the physical machine determines the type of virtual NIC that is emulated.
- 27. Multiple Choice
Which of the following cloud computing solutions will deliver software applications to a client either over the internet or on a local area network?
IaaS
PaaS
SaaS
DaaS
- 28. Multiple Choice
Which of the following best describes the platform as a service (PaaS) cloud computing service model?
PaaS delivers everything a developer needs to build an application onto the cloud infrastructure.
PaaS delivers infrastructure to the client, such as processing, storage, networks, and virtualized environments.
PaaS delivers software applications to the client either over the internet or on a local area network.
PaaS stores and provides data from a centralized location without requiring local collection and storage.
- 29. Multiple Choice
Which of the following are true regarding cloud computing? (Select three.)
The term "cloud" is used as a synonym for the internet.
Typical cloud computing providers deliver common business applications online that are accessed from another web service or software like a web browser.
Cloud computing requires end user knowledge of the physical location and configuration of the system that delivers the services.
Cloud computing is software, data access, computation, and storage services provided to clients through the internet.
- 30. Multiple Choice
You were recently hired by a small start-up company. The company is in a small office and has several remote employees.
You have been asked to find a business service that would accommodate the current size of the company, but would also be able to scale as the company grows. The service needs to provide adequate storage, as well as additional computing power.
Which cloud service model should you use?
PaaS
DaaS
SaaS
IaaS
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