Certiport Networking Certification Exam
Questions and Answers
SMTP (Simple Mail Transfer Protocol) - Correct Answers -25 TCP
FTP - Correct Answers -20, 21 TCP
HTTPS (Hypertext Transfer Protocol Secure) - Correct Answers -An encrypted version
of HTTP. It uses port 443.
IoT (Internet of Things) - Correct Answers -a large network of physical objects including
sensors and equipment
OSI Layer 1 - Physical - Correct Answers -Protocols: 100BaseT, 1000BaseT.
Device: hubs, RJ45, repeater.
OSI Layer 2 - Data Link - Correct Answers -Protocols: Ethernet, MAC, Frames, crc.
Device: NIC, switch, bridge, WAPs.
OSI Layer 3 - Network - Correct Answers -Logical addressing, switching type, route
discovery/selection, and packet ordering.
IP, ICMP, ARP, RIP, IPX
Device: Router
OSI Layer 4 - Transport - Correct Answers -Protocols (TCP/UDP), windowing, buffering
Device: N/A
Broadcast - Correct Answers -1 to all communications
Virtual machine - Correct Answers -software enabled operating system
Virtual Private Network (VPN) - Correct Answers -Network Service to encrypt and
secure a connection to company LAN (DirectAccess = without any user action)
Remote Desktop: Port 3389 - Correct Answers -allow remote connection to another
computer system
CSMA/CA - Correct Answers -Carrier Sense Multiple Access/Collision
, Security is a concern wireless networks because of the radio broadcast access method
(CSMA/CA)
OSI Layer 5: Session - Correct Answers -Protocols: Log on/ Log off, NetBIOS,
Negotiation
Device: N/A.
OSI Layer 6: Presentation - Correct Answers -Protocols: compression, encryption.
Device: N/A.
OSI Layer 7: Application - Correct Answers -Protocols: FTP, HTTP, HTTPS, POP3,
SMTP, IMAP
Device: Gateway
UDP - Correct Answers -connectionless messaged based protocol with best effort
service.
TCP - Correct Answers -Transmission Control Protocol, connection oriented protocol
with guaranteed service
ARP - Correct Answers -Address Resolution Protocol, resolves IP addresses to MAC
addresses.
Loopback address - Correct Answers -127.0.0.0 - 127.255.255.255
Multicast address - Correct Answers -224.0.0.0 to 239.255.255.255
Private Network addresses - Correct Answers -192.168.0.0 - 192.168.255.255
Class A IP Address - Correct Answers -1-126 Leading bits.
128 Networks.
16,777,214 Hosts per Network.
Default Subnet Mask 255.0.0.0
Class B IP Address - Correct Answers -128-191 Leading bits.
16,384 Networks.
65,534 Hosts per Network.
Default Subnet Mask 255.255.0.0
Class C IP Address - Correct Answers -192-223 Leading bits.
2,097,152 Networks.
254 Hosts per Network.
Default Subnet Mask 255.255.255.0
Questions and Answers
SMTP (Simple Mail Transfer Protocol) - Correct Answers -25 TCP
FTP - Correct Answers -20, 21 TCP
HTTPS (Hypertext Transfer Protocol Secure) - Correct Answers -An encrypted version
of HTTP. It uses port 443.
IoT (Internet of Things) - Correct Answers -a large network of physical objects including
sensors and equipment
OSI Layer 1 - Physical - Correct Answers -Protocols: 100BaseT, 1000BaseT.
Device: hubs, RJ45, repeater.
OSI Layer 2 - Data Link - Correct Answers -Protocols: Ethernet, MAC, Frames, crc.
Device: NIC, switch, bridge, WAPs.
OSI Layer 3 - Network - Correct Answers -Logical addressing, switching type, route
discovery/selection, and packet ordering.
IP, ICMP, ARP, RIP, IPX
Device: Router
OSI Layer 4 - Transport - Correct Answers -Protocols (TCP/UDP), windowing, buffering
Device: N/A
Broadcast - Correct Answers -1 to all communications
Virtual machine - Correct Answers -software enabled operating system
Virtual Private Network (VPN) - Correct Answers -Network Service to encrypt and
secure a connection to company LAN (DirectAccess = without any user action)
Remote Desktop: Port 3389 - Correct Answers -allow remote connection to another
computer system
CSMA/CA - Correct Answers -Carrier Sense Multiple Access/Collision
, Security is a concern wireless networks because of the radio broadcast access method
(CSMA/CA)
OSI Layer 5: Session - Correct Answers -Protocols: Log on/ Log off, NetBIOS,
Negotiation
Device: N/A.
OSI Layer 6: Presentation - Correct Answers -Protocols: compression, encryption.
Device: N/A.
OSI Layer 7: Application - Correct Answers -Protocols: FTP, HTTP, HTTPS, POP3,
SMTP, IMAP
Device: Gateway
UDP - Correct Answers -connectionless messaged based protocol with best effort
service.
TCP - Correct Answers -Transmission Control Protocol, connection oriented protocol
with guaranteed service
ARP - Correct Answers -Address Resolution Protocol, resolves IP addresses to MAC
addresses.
Loopback address - Correct Answers -127.0.0.0 - 127.255.255.255
Multicast address - Correct Answers -224.0.0.0 to 239.255.255.255
Private Network addresses - Correct Answers -192.168.0.0 - 192.168.255.255
Class A IP Address - Correct Answers -1-126 Leading bits.
128 Networks.
16,777,214 Hosts per Network.
Default Subnet Mask 255.0.0.0
Class B IP Address - Correct Answers -128-191 Leading bits.
16,384 Networks.
65,534 Hosts per Network.
Default Subnet Mask 255.255.0.0
Class C IP Address - Correct Answers -192-223 Leading bits.
2,097,152 Networks.
254 Hosts per Network.
Default Subnet Mask 255.255.255.0
