1.7-1.8 Flashcards
A company uses several Windows Servers for Active Directory, SQL Server, RADIUS, DHCP, and DNS. Management pushes to move to the cloud. IT suggests moving services in a staggered fashion as to not cause disruption. IT moves SQL server instances to the cloud as a start. IT migrates this specific function to which of the following service types?
PaaS
Hybrid
SaaS
IaaS
PaaS
Platform as a Service (PaaS) is a computing method that uses the cloud to provide any platform-type services. A SQL database is an example of PaaS.
IT implements Google Suite for Business at a large firm. This implementation negates the need to install any local applications. Considering the implementation, which type of cloud service does IT deploy?
Hybrid
SaaS
IaaS
PaaS
SaaS
Software as a Service (SaaS) is a computing method that uses the cloud to provide application services to users. Office 365 is an example of SaaS.
IT engineers from partner organizations plan a cloud infrastructure. After considering the available delivery models, engineers decide to migrate and use a community model. Evaluate the given statements and conclude which best fits the model’s approach.
Private link
Multi-tenant use
Utilization benefits
Shared costs
Shared costs
A community cloud solution is where several organizations share the costs of either a hosted private or fully private cloud.
Which of the following relates to a community cloud delivery model?
shared costs
multi-tenant use
utilization benefits
third-party secure
Shared costs
A community cloud solution is where several organizations share the costs of either a hosted private or fully private cloud.
Which of the following acronyms relates to a procedure to document network addressing?
NTP
IPAM
PTR
SRV
IPAM
The core function of IP address management (IPAM) is to scan DHCP and DNS servers and log IP address usage to a database.
An organization considers moving some internal services to the cloud. Which of the following descriptions relates to a hybrid cloud infrastructure?
Multi-tenant use
Third-party secure
Utilization benefits
Shared costs
Utilization benefits
A hybrid cloud solution uses a mix of multiple cloud delivery models. One approach is to only utilize cloud services when it forecasts that private services will experience an increase in activity.
A Voice over Internet Protocol (VoIP) application does not work properly with company email address accounts. A tech concludes that a domain name system (DNS) record is incorrect. Which record type does the tech modify to restore services?
SRV
TXT
CNAME
AAAA
SRV
A Service (SRV) record is a DNS record used to identify a record that is providing a network service or protocol. Properties of this record type include port and protocol.
A virtual private network exists between two sites. The main site delivers Internet protocol (IP) addresses to the remote site. A configuration change places the remote site on a different subnet. An IT engineer reconfigures which of the following?
Pool
Lease
Relay
Reservation
Relay
A DHCP relay agent can be configured to provide forwarding of DHCP traffic between different subnets.
An engineer configures a sender policy framework (SPF) record to list the server names allowed to send email for a company. Considering domain name system (DNS) record types, which does the engineer configure?
SRV record
“A” record
TXT record
CNAME record
TXT
A TXT record is used to store any free-form text that may be needed to support other network services. An SPF record is a TXT record that is used to list the IP addresses or names of servers that are permitted to send email.
A user routinely has difficulty printing to a network printer. While troubleshooting, a tech discovers that the printer uses a discovery port. The tech fixes the issue by using which method?
Address Pool
DHCP relay
Lease time
MAC reservation
MAC reservation
A media access control (MAC) address reservation is a mapping of a MAC address to a specific IP address within the DHCP server’s address pool. Using a reservation ensures a device always uses the same IP address.
An organization tightens email security by placing a DNS record for mail servers, as a method to verify that messages are authentic. Evaluate the given descriptions and conclude which one relates to the record.
Represent an alias for an email host
Allow received email from a given source
Names of servers permitted to send email
Identify an email server for the domain
Allow received email from a given source
DomainKeys Identified Mail (DKIM) records are used to decide whether a server should allow received email from a given source (through verification), preventing spam and mail spoofing.
A Windows Active Directory (AD) domain uses companyname.com. An external web server uses www.companyname.com. Users on the corporate network cannot reach the web server when using a www prefix. An IT engineer modifies which of the following to remedy the issue?
Internal DNS zone
Third-party DNS
DNS forwarder
External DNS zone
Internal DNS zone
Internal domain name system (DNS) zones refer to the domains used on a private network. As the site uses the same domain name as AD, an A record for www needs to be created internally to point to the public web server address.
The CEO of an organization informs IT that email is not working. Upon investigating the problem, an engineer discovers that the company’s domain name system records are missing. Which record type does IT fix to solve the email issue?
PTR
TTL
CNAME
MX
MX
A mail exchanger (MX) record identifies an email server for the domain. In a typical network, multiple servers are defined to provide redundancy.
In which of the following would an IT engineer configure a PTR?
Forward lookup zone
Reverse lookup zone
DNS Forwarder
DNS Hierarchy
Reverse lookup zone
A PTR record is found in reverse lookup zones and is used to resolve an IP address to an associated host name.
A wireless mobile device is unable to obtain a dynamic host configuration protocol (DHCP) address. An IT engineer discovers that a large number of offline devices are assigned an address. The engineer adjusts which of the following to remedy the issue?
DHCP relay
Address Pool
MAC reservation
Lease time
Lease time
A lease period determines how long a system is assigned an IP address from a DHCP server. A long lease means the client does not have to renew as frequently, but as a result the DHCP server’s pool of IP addresses is not replenished.
