WGU C851 LINUX FOUNDATIONS QUESTIONS & ANSWERS 2026-2027 … EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU C851 Linux
Foundations Questions &
Answers 2026-2027 |
Latest Comprehensive
Review
Verified Answers Exam Ready With Rationales
81 QUESTIONS
DOCUMENT OVERVIEW
This document contains 81 verified questions with correct answers already provided, offering a
comprehensive review of Linux foundations. It serves as a valuable resource for students
preparing for certification exams, facilitating effective study and review of essential concepts in
Linux systems. The format ensures a focused understanding of key topics, enhancing learners'
confidence and knowledge retention.
CONTENTS
Web Servers and DNS Q1–Q13
Networking and Security Q14–Q25
Linux Commands and Scripting Q26–Q41
User Management and System Administration Q42–Q56
Page 1
,File Systems and Permissions Q57–Q69
Linux Distributions and Package Management Q70–Q81
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 81
Which of the following programs are web servers? (Choose two.)
A. Apache HTTPD
B. Postfix
C. Curl
D. Dovecot
E. NGINX
CORRECT ANSWER
AE
Q2 QUESTION 2 OF 81
What are the differences between hard disk drives and solid state disks? (Choose two.)
A. Hard disks have a motor and moving parts, solid state disks do not.
B. Hard disks can fail due to physical damage, while solid state disks cannot fail.
C. Solid state disks can store many times as much data as hard disk drives.
D. /dev/sda is a hard disk device while /dev/ssda is a solid state disk.
E. Solid state disks provide faster access to stored data than hard disks.
CORRECT ANSWER
AE
Page 2
, Q3 QUESTION 3 OF 81
Reverse DNS assigns hostnames to IP addresses. How is the name of the IP address
198.51.100.165 stored on a DNS server?
A. In the A record for 165.100.51.198.ipv4.arpa.
B. In the PTR record for 165.100.51.198.in-addr.arpa.
C. In the RNAME record for 198-51-100-165.rev.arpa.
D. In the ARPA record for 165.100.51.198.rev.
E. In the REV record for arpa.in-addr.198.51.100.165.
CORRECT ANSWER
B
Q4 QUESTION 4 OF 81
Which of the following commands can be used to resolve a DNS name to an IP address?
A. dnsname
B. dns
C. query
D. host
E. iplookup
CORRECT ANSWER
D
Q5 QUESTION 5 OF 81
The current directory contains the following file:-rwxr-xr-x 1 root root 859688 Feb 7 08:15
test.shGiven that the file is a valid shell script, how can this script be executed? (Choose two.)
A. run test.sh
B. ${test.sh}
C. cmd ./test.sh
D. ./test.sh
E. bash test.sh
CORRECT ANSWER
DE
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU C851 Linux
Foundations Questions &
Answers 2026-2027 |
Latest Comprehensive
Review
Verified Answers Exam Ready With Rationales
81 QUESTIONS
DOCUMENT OVERVIEW
This document contains 81 verified questions with correct answers already provided, offering a
comprehensive review of Linux foundations. It serves as a valuable resource for students
preparing for certification exams, facilitating effective study and review of essential concepts in
Linux systems. The format ensures a focused understanding of key topics, enhancing learners'
confidence and knowledge retention.
CONTENTS
Web Servers and DNS Q1–Q13
Networking and Security Q14–Q25
Linux Commands and Scripting Q26–Q41
User Management and System Administration Q42–Q56
Page 1
,File Systems and Permissions Q57–Q69
Linux Distributions and Package Management Q70–Q81
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 81
Which of the following programs are web servers? (Choose two.)
A. Apache HTTPD
B. Postfix
C. Curl
D. Dovecot
E. NGINX
CORRECT ANSWER
AE
Q2 QUESTION 2 OF 81
What are the differences between hard disk drives and solid state disks? (Choose two.)
A. Hard disks have a motor and moving parts, solid state disks do not.
B. Hard disks can fail due to physical damage, while solid state disks cannot fail.
C. Solid state disks can store many times as much data as hard disk drives.
D. /dev/sda is a hard disk device while /dev/ssda is a solid state disk.
E. Solid state disks provide faster access to stored data than hard disks.
CORRECT ANSWER
AE
Page 2
, Q3 QUESTION 3 OF 81
Reverse DNS assigns hostnames to IP addresses. How is the name of the IP address
198.51.100.165 stored on a DNS server?
A. In the A record for 165.100.51.198.ipv4.arpa.
B. In the PTR record for 165.100.51.198.in-addr.arpa.
C. In the RNAME record for 198-51-100-165.rev.arpa.
D. In the ARPA record for 165.100.51.198.rev.
E. In the REV record for arpa.in-addr.198.51.100.165.
CORRECT ANSWER
B
Q4 QUESTION 4 OF 81
Which of the following commands can be used to resolve a DNS name to an IP address?
A. dnsname
B. dns
C. query
D. host
E. iplookup
CORRECT ANSWER
D
Q5 QUESTION 5 OF 81
The current directory contains the following file:-rwxr-xr-x 1 root root 859688 Feb 7 08:15
test.shGiven that the file is a valid shell script, how can this script be executed? (Choose two.)
A. run test.sh
B. ${test.sh}
C. cmd ./test.sh
D. ./test.sh
E. bash test.sh
CORRECT ANSWER
DE
Page 3
