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CIT - Module 4: Mail Security Flashcards | StudBud
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CIT - Module 4: Mail Security
CIT - Module 4: Mail Security
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Questions
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Answers
1
What command is used to query domain names and IP addresses in Windows?
nameserver
DNSquery
Iplookup
nslookup
2
Which of these is NOT included in DNS records
NS Records
CNAME Records
TXT Records
MK Records
3
Which of these is NOT true about SMTP?
Used for outgoing mail only
Used in Linux environments only
Sends info from a sender's server to a recipient's server
Uses port 25
4
What is DKIM used for in cybersecurity?
Authenticates recipients and verifies permission to recieve email
Verifies senders with a digital signature with a public key
Monitors / quarantines / rejects emails that fail security checks
Uses DNS records to check senders and detect forged addresses
5
What is an Email Header?
The displayable portion of an email, without routing info
The greeting that indicates the sender knows the recipient
The metadata of the email including sender, recipient, content type, etc.
The frame that an email is sent inside of
6
Which of these is NOT a security tool that can help address email spoofing?
DKIM
FAT
DMARC
SPF
7
What is SPF used for in cybersecurity?
i dunno...making sure routers don't get a sunburn???
Monitors / quarantines / rejects emails that fail security checks
Uses DNS records to check senders and detect forged addresses
Verifies senders with a digital signature with a public key
8
Which of these is NOT true about IMAP?
Stands for Internet Message Access Protocol
Stores emails and allows users acess as if stored locally
Uses port 143
Has no storage space limitation
9
What is a sandbox used for?
Hiding important email from anyone monitoring a network
Stealing email headers and hiding them from the sender
Testing suspicious email attachments
The removal of public-facing IPs and attaching of private IPs
10
Which of these is correct?
Domains can be owned privately
Domains are controlled and assigned by a company's IT
Domains cannot be owned, only reserved for limited time
Domains are limited based on subnet class
11
Which of these is true about POP3?
Receives emails and filters them to user folders
Most secure mail protocol
Uses port 111
Stands for Post Office Privacy Protection Protocol
12
Why is phishing still one of the biggest threats for organizations?
Because they are identical to legitimate emails
Phish might contain mercury
Humans are the weakest link in the cyber security chain
Phishing is impossible to protect a system from
13
What does CDR do that antivirus doesn't?
Informs the sender that a file has been marked as malicious
Removes malicious code from within files
Says "sorry" when it gives a false negative
Blocks senders of malicious files from sending more files
14
Where is DNS information stored?
In IANA files on the network
DNS info is never stored. It is for temporary access only
In the Domain Registry
Each device with an IP stores their own DNS info locally
15
Mail Relays and Email Servers are the same thing
True
False
16
Which is NOT an advantage to using a Mail Relay?
Protects against spam, phisihing, and spoofing
Scans file attachments
Protects the reputation of the domain and the IP
Sends mail directly to the intended recipient
17
Which of these is NOT a real mail protocol?
RCMP
STMP
IMAP
POP3
18
What does MIME stand for?
Nothing. They can't stand in all that imaginary wind
Multipurpose Internet Mail Extensions
Multifactor Identity Mail Enforcement
Mail Integrity Multifactor Exchange
19
What is DMARC used for in cybersecurity?
Verifies senders with a digital signature with a public key
Authenticates recipients and verifies permission to recieve email
Monitors / quarantines / rejects emails that fail security checks
Uses DNS records to check senders and detect forged addresses
20
Which of these is NOT real?
MDA --- Mail Delivery Agents
MRA --- Mail Receiving Agents
MTA --- Mail Transfer Agents
MUA --- Mail User Agents
