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GSEC Exam Study Questions with Detailed Verified Answers

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Question: What are the layers of the OSI Model from top to bottom? Ans: Application, Presentation, Session, Transport, Network, Data Link and Physical Question: What are the layers of the TCP/IP Model from top to bottom? Ans: Application, Transport, Internet and Link Layer Question: What is the address space used for loopback addressing? Ans: 127.0.0.0 - 127.255.255.255 Question: What is the address space used when a DHCP server is not available? Ans: 169.254.0.1 - 169.254.255.255 Question: What are the private IP ranges? Ans: 10.0.0.0 - 10.255.255.255, 172.16.0.0 - 172.31.255.255, 192.168.0.0 - 192.168.255.255

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Page | 1



GSEC Exam Study Questions with
Detailed Verified Answers


Question: What are the layers of the OSI Model from top to bottom?


Ans: Application, Presentation, Session, Transport, Network, Data Link
and Physical


Question: What are the layers of the TCP/IP Model from top to bottom?


Ans: Application, Transport, Internet and Link Layer


Question: What is the address space used for loopback addressing?


Ans: 127.0.0.0 - 127.255.255.255


Question: What is the address space used when a DHCP server is not
available?


Ans: 169.254.0.1 - 169.254.255.255


Question: What are the private IP ranges?


Ans: 10.0.0.0 - 10.255.255.255, 172.16.0.0 - 172.31.255.255, 192.168.0.0 -
192.168.255.255



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, Page | 2

Question: What protocols are used in the Data Link Layer?


Ans: Ethernet, Point to Point Protocol (PPP) and ADCCP (Advanced Data
Communication Control Protocol)


Question: What protocols is utilized in the Network Layer?


Ans: Internet Protocol (IP)


Question: What protocols are utilized in the Transport Layer?


Ans: UDP and TCP


Question: What protocols are utilized on the Session Layer?


Ans: NetBIOS


Question: What types of formats are used at the presentation layer?


Ans: XML and JPEG


Question: What layer of the OSI model does encrypting and decrypting take
place?


Ans: Presentation Layer


Question: What protocols are utilized at the Application Layer?




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, Page | 3

Ans: SMTP, IMAP, POP, NTP and HTTP


Question: What protocols are utilized inside the Link Layer?


Ans: Ethernet


Question: What layers does the Link layer correspond to in the OSI Model?


Ans: Physical and Data Link


Question: What protocols are utilized inside the Internet layer?


Ans: Internet Protocol (IP)


Question: What protocols are utilized inside the Transport layer of the TCP/IP
Model??


Ans: TCP and UDP


Question: What protocols are utilized within the Application Layer of the
TCP/IP model?


Ans: Telnet, Simple Network Management Protocol (SNMP), HTML,
LDAP, FTP, SSH


Question: What layers of the OSI Model comprise the TCP/IP layers
Application Layer?



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, Page | 4

Ans: Session, Presentation and Application


Question: What protocol is a support protocol within the TCP/IP Suite?


Ans: Internet Control Message Protocol (ICMP)


Question: What range is the Class A IP Range?


Ans: 0.0.0.0-127.255.255.255


Question: What range is the Class B IP Range?


Ans: 128.0.0.0-191.255.255.255


Question: What range is the Class C IP Range?


Ans: 192.0.0.0-223.255.255.255


Question: What range is the Class D IP Range?


Ans: 224.0.0.0-239.255.255.255


Question: What range is the Class E IP Range?


Ans: 240.0.0.0 - 254.255.255.255


Question: Name some physical network topologies.




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