10/9/24, 1:16 PM CREST CPSA EXAM COMPREHENSIVE QUESTIONS AND CORRECT ANSWERS LATEST 2024-2025(VERIFIED ANSWER…
CREST CPSA EXAM COMPREHENSIVE
QUESTIONS AND CORRECT ANSWERS LATEST
2024-2025(VERIFIED ANSWERS)/GET IT 100%
ACCURATE!!
Terms in this set (124)
Application, Presentation, Session, Transport,
Name all OSI layers
Network, Data Link, Physical.
Name all TCP/IP layers Application, Transport, internet, Network Access.
Name Four TCP head ACK, FIN, SYN, URG, PSH, RST
flags
Which layer does HTTP Layer 7, Application.
protocl reside in the OSI
model.
Which layer does Layer 2, Data link.
Ethernet reside in the OSI
model.
Which Layer does IPv4 & Layer 4, transport.
IPv6 reside in TCP/IP
model.
10.0.0.0 - 10.255.255.255 (10/8 prefix)
RFC 1918 addresses 172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
Name the well know, Well Known(0-1023), Registed(1024-49,151) &
registered and dynamic Dynamic(49,152-65,535)
port ranges.
An ephemeral port is a short-lived transport
What is an ephemeral
protocol port for Internet Protocol (IP)
port?
communications. Can be used by both TCP & UDP.
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What does IANA stand Internet Assigned Numbers Authority
for?
FTP21, SSH22, DHCP67(C), DHCP68(S), NTP123,
MYSQL3306, RDP3389, HTTP80, HTTPS443,
Name 10 common ports
SMB445, KERBEROS88, CHARGEN19(UDP), DNS53,
and there protocols.
TACAS49, WHOIS43, MSSQL1433, HIDDEN
MSSQL2433.
Name five network types. LAN, WAN, MAN, VLAN, WLAN, PAN.
Name five network Mesh, Ring, star, Tree, Bus.
topologies
Name five common 100Base5, 10Base2, 10BaseT, 100Base-FL, 1000Base-T.
ethernet and FDDI cable
types.
What is WIFI the alias IEEE 802.11
for?
What does VLAN stand Virtual Local Area Network
for?
Virtual Local Area Networks (VLANs) separate an
existing physical network into multiple logical
networks.
How does VLAN work?
Thus, each VLAN creates its own broadcast domain.
Communication between two VLANs can only occur
through a router that is connected to both.
Name five common ICMP 8-echo, 0-echo reply, 30-trace route, 5-redirect, 3-
types. destination unreachable, 11, time execeed.
What does ICMP stand Internet Control Message Protocol
for?
What does TTL stand for? Time to Live
TTL is a hop count system, and each router
decreases the TTL by 1. Upon reaching 0, the packet
What is TTL?
is dropped. This way you don't have packets not
reaching their destination and clogging the network.
OS TLL numbers? 128 Windows, 64 linux, 255 solaris(kapp)
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