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87 Cards in this Set
- Front
- Back
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06.01
The OSI has seven layers, which layer does SMTP work at? A. Network B. Transport C. Session D. Application |
The OSI has seven layers, which layer does SMTP work at? A. Network B. Transport C. Session D. Application |
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06.02 You need to have secure communications using HTTPS. What port number is used by default? A. 69 B. 23 C. 21 D. 443 |
You need to have secure communications using HTTPS. What port number is used by default? A. 69 B. 23 C. 21 D. 443 |
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06.03 You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway, and DNS information. Which protocol will you use to accomplish this? A. SMTP B. SNMP C. DHCP D. ARP |
You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway, and DNS information. Which protocol will you use to accomplish this? A. SMTP B. SNMP C. DHCP |
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06.04 What protocol is used to find the hardware address of a local device? A. RARP B. ARP C. IP D. ICMP E. BootP |
What protocol is used to find the hardware address of a local device? A. RARP B. ARP C. IP D. ICMP E. BootP |
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06.05 You need to login to a Unix server across a network that is not secure. Which of the following protocols will allow you to remotely administrator this server securely? A. Telnet B. SSH C. SFTP D. HTTP |
You need to login to a Unix server across a network that is not secure. Which of the following protocols will allow you to remotely administrator this server securely? A. Telnet B. SSH C. SFTP D. HTTP |
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06.06 If you can ping by IP address but not by hostname, or FQDN, which of the following port numbers is related to the server process that is involved? A. 21 B. 23 C. 53 D. 69 E. 80 |
If you can ping by IP address but not by hostname, or FQDN, which of the following port numbers is related to the server process that is involved? A. 21 B. 23 C. 53 D. 69 E. 80 |
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06.07 Which of the following describe the DHCP Discover message? (Choose two.) A. It uses FF:FF:FF:FF:FF:FF as a Layer 2 broadcast. B. It uses UDP as the Transport layer protocol. C. It uses TCP as the Transport layer protocol. D. It does not use a Layer 2 destination address. |
Which of the following describe the DHCP Discover message? (Choose two.) A. It uses FF:FF:FF:FF:FF:FF as a Layer 2 broadcast. B. It uses UDP as the Transport layer protocol. C. It uses TCP as the Transport layer protocol. D. It does not use a Layer 2 destination address. |
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06.08 What layer 4 protocol is used for a Telnet connection, and what is the default port number? A. IP, 6 B. TCP, 21 C. UDP, 23 D. ICMP, 21 E. TCP, 23 |
What layer 4 protocol is used for a Telnet connection, and what is the default port number? A. IP, 6 B. TCP, 21 C. UDP, 23 D. ICMP, 21 E. TCP, 23 |
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06.09 Which statements are true regarding ICMP packets? (Choose two.) A. They acknowledge receipt of a TCP segment. B. They guarantee datagram delivery. C. They can provide hosts with information about network problems. D. They are encapsulated within IP datagrams. E. They are encapsulated within UDP datagrams. |
Which statements are true regarding ICMP packets? (Choose two.) A. They acknowledge receipt of a TCP segment. B. They guarantee datagram delivery. C. They can provide hosts with information about network problems. D. They are encapsulated within IP datagrams. E. They are encapsulated within UDP datagrams. |
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06.10 Which of the following services use TCP? (Choose three.) A. DHCP B. SMTP C. SNMP D. FTP E. HTTP F. TFTP |
Which of the following services use TCP? (Choose three.) A. DHCP B. SMTP C. SNMP D. FTP E. HTTP F. TFTP |
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06.11 Which of the following services use UDP? (Choose three.) A. DHCP B. SMTP C. SNMP D. FTP E. HTTP F. TFTP |
Which of the following services use UDP? (Choose three.) A. DHCP B. SMTP C. SNMP D. FTP E. HTTP F. TFTP |
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06.12 Which of the following are TCP/IP protocols used at the Application layer of the OSI model? (Choose three.) A. IP B. TCP C. Telnet D. FTP E. TFTP |
Which of the following are TCP/IP protocols used at the Application layer of the OSI model? (Choose three.) A. IP B. TCP C. Telnet D. FTP E. TFTP |
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06.13 Which of the following protocols is used by e‑mail servers to exchange messages with one another? A. POP3 B. IMAP C. SMTP D. HTTP |
Which of the following protocols is used by e‑mail servers to exchange messages with one another? A. POP3 B. IMAP C. SMTP D. HTTP |
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06.14 If you use either Telnet or FTP, which is the highest layer you are using to transmit data? A. Application B. Presentation C. Session D. Transport |
If you use either Telnet or FTP, which is the highest layer you are using to transmit data? A. Application B. Presentation C. Session D. Transport |
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06.15 Which of the following protocols can use TCP and UDP, permits authentication and secure polling of network devices, and allows for automated alerts and reports on network devices? A. DNS B. SNMP C. SMTP D. TCP |
Which of the following protocols can use TCP and UDP, permits authentication and secure polling of network devices, and allows for automated alerts and reports on network devices? A. DNS B. SNMP C. SMTP D. TCP |
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06.16 You need to transfer files between two hosts. Which two protocol can you use? A. SNMP B. SCP C. RIP D. NTP E. FTP |
You need to transfer files between two hosts. Which two protocol can you use? A. SNMP B. SCP C. RIP D. NTP E. FTP |
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06.17 What layer in the IP stack is equivalent to the Transport layer of the OSI model? A. Application B. Host-to-Host C. Internet D. Network Access |
What layer in the IP stack is equivalent to the Transport layer of the OSI model? A. Application B. Host-to-Host (The IP Stack is also referred to as the DOD model). C. Internet D. Network Access |
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06.18 You need to make sure that your network devices have a consistent time across all devices. What protocol do you need to run on your network? A. FTP B. SCP C. NTP E. RTP |
You need to make sure that your network devices have a consistent time across all devices. What protocol do you need to run on your network? A. FTP B. SCP C. NTP E. RTP |
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06.19 Which of the following allows a server to distinguish among different simultaneous requests from the same host? A. They have different port numbers. B. A NAT server changes the IP address for subsequent requests. C. A server is unable to accept multiple simultaneous sessions from the same host. One session must end before another can begin. D. The MAC address for each one is unique. |
Which of the following allows a server to distinguish among different simultaneous requests from the same host? A. They have different port numbers. B. A NAT server changes the IP address for subsequent requests. C. A server is unable to accept multiple simultaneous sessions from the same host. One session must end before another can begin. D. The MAC address for each one is unique. |
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06.20 Which of the following protocols uses both TCP and UDP? A. FTP B. SMTP C. Telnet D. DNS |
Which of the following protocols uses both TCP and UDP? A. FTP B. SMTP C. Telnet D. DNS |
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06.21 What might be the problem if a DHCP client suddenly finds itself in a different IP subnet from the one it should be in? |
The most likely problem is that a rogue DHCP server has been introduced into the network and is handing this device an incorrect lease. |
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06.22 Name the protocol that uses both TCP ports 20 and 21. |
FTP uses both TCP ports 20 and 21 for the data channel and the control channel, respectively. |
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06.23 What two well-known port numbers does a DNS server use? |
A DNS server uses TCP port 53 for zone transfers and UDP port 53 for name resolutions. |
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06.24 Which protocol dynamically reports errors to source hosts by using IP directly to build packets? |
ICMP uses IP directly to build error-reporting packets that are transmitted back to the originating source host when issues arise during the delivery of data packets. ICMP is also used during ping and some Traceroute operations. |
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06.25 What could cause a server that you can ping not to provide the particular TCP/IP service, such as FTP, HTTP, and so on, that you expect it to offer? |
Quite simply, the service might not be running currently on that server. Another possibility might be that a firewall between the client and the server has blocked the protocol in question from passing. |
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06.26 What might cause your email to stop functioning properly when you change Internet service providers? |
Most ISPs have their own mail servers. When you switch service, you might need to point your mail application to the servers provided by the new service provider. |
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06.27 Which UNIX command is used for terminal emulation in the same way Telnet is used? |
The UNIX command rlogin functions similarly to Telnet. |
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06.28 What protocol is at the heart of the ping and tracert commands in a Windows operating system? |
ICMP is the protocol that the ping and tracert commands rely on. If you’re having trouble getting pings and Traceroutes through a router, you might need to check if ICMP is being allowed thorough. |
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06.29 Which destination Transport-layer protocol and port number does a TFTP client use to transfer files over the network? |
TFTP servers respond to UDP messages sent to port 69. |
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06.30 What well-known port numbers do SMTP, POP3, and IMAP4 servers use? |
SMTP uses TCP port 25 POP3 uses TCP port 110. IMAP4 uses TCP port 143 |
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06.31.1 * Provide the missing. Protocol: ? Port: 20 (data) and 21 (control) Transfer Protocol: TCP |
Protocol: FTP Port: 20 (data) and 21 (control) Transfer Protocol: TCP |
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06.31.2 * Provide the missing. Protocol: FTP Port: ? Transfer Protocol: TCP |
Protocol: FTP Port: 20 (data) and 21 (control) Transfer Protocol: TCP |
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06.31.3 * Provide the missing. Protocol: FTP Port: 20 (data) and 21 (control) Transfer Protocol: ? |
Protocol: FTP Port: 20 (data) and 21 (control) Transfer Protocol: TCP |
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06.32.1 * Provide the missing. Protocol: ? Port: 161 Transfer Protocol: UDP |
Protocol: SNMP Port: 161 Transfer Protocol: UDP |
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06.32.2 * Provide the missing. Protocol: SNMP Port: ? Transfer Protocol: UDP |
Protocol: SNMP Port: 161 Transfer Protocol: UDP |
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06.32.3 * Provide the missing. Protocol: SNMP Port: 161 Transfer Protocol: ? |
Protocol: SNMP Port: 161 Transfer Protocol: UDP |
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06.33.1 * Provide the missing. Protocol: ? Port: 22 Transfer Protocol: TCP |
Protocol: SSH Port: 22 Transfer Protocol: TCP |
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06.33.2 * Provide the missing. Protocol: SSH Port: ? Transfer Protocol: TCP |
Protocol: SSH Port: 22 Transfer Protocol: TCP |
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06.33.3 * Provide the missing. Protocol: SSH Port: 22 Transfer Protocol: ? |
Protocol: SSH Port: 22 Transfer Protocol: TCP |
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06.34.1 * Provide the missing. Protocol: ? Port: 23 Transfer Protocol: TCP |
Protocol: Telnet Port:23 Transfer Protocol: TCP |
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06.34.2 * Provide the missing. Protocol: Telnet Port: ? Transfer Protocol: TCP |
Protocol: Telnet Port: 23 Transfer Protocol: TCP |
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06.34.3 * Provide the missing. Protocol: Telnet Port:23 Transfer Protocol: ? |
Protocol: Telnet Port:23 Transfer Protocol: TCP |
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06.35.1 * Provide the missing. Protocol: ? Port: 53 Transfer Protocol: Both UDP and TCP |
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Protocol: DNS Port: 53 Transfer Protocol: Both UDP and TCP |
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06.35.2 * Provide the missing. Protocol: DNS Port: ? Transfer Protocol: Both UDP and TCP |
Protocol: DNS Port: 53 Transfer Protocol: Both UDP and TCP |
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06.35.3 * Provide the missing. Protocol: DNS Port: 53 Transfer Protocol: ? |
Protocol: DNS Port: 53 Transfer Protocol: Both UDP and TCP |
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06.36.1 * Provide the missing. Protocol: ? Port: 67 (server) and 68 (client) Transfer Protocol: UDP |
Protocol: DHCP Port: 67 (server) and 68 (client) Transfer Protocol: UDP |
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06.36.2 * Provide the missing. Protocol: DHCP Port: ? Transfer Protocol: UDP |
Protocol: DHCP Port: 67 (server) and 68 (client) Transfer Protocol: UDP |
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06.36.3 * Provide the missing. Protocol: DHCP Port: 67 (server) and 68 (client) Transfer Protocol: ? |
Protocol: DHCP Port: 67 (server) and 68 (client) Transfer Protocol: UDP |
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06.37.1 * Provide the missing. Protocol: ? Port: 69 Transfer Protocol: UDP |
Protocol: TFTP Port: 69 Transfer Protocol: UDP |
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06.37.2 * Provide the missing. Protocol: TFTP Port: ? Transfer Protocol: UDP |
Protocol: TFTP Port: 69 Transfer Protocol: UDP |
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06.37.3 * Provide the missing. Protocol: TFTP Port: 69 Transfer Protocol: ? |
Protocol: TFTP Port: 69 Transfer Protocol: UDP |
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06.38.1 * Provide the missing. Protocol: ? Port: 445 Transfer Protocol: UDP |
Protocol: SMB Port: 445 Transfer Protocol: UDP |
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06.38.2 * Provide the missing. Protocol: SMB Port: ? Transfer Protocol: UDP |
Protocol: SMB Port: 445 Transfer Protocol: UDP |
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06.38.3 * Provide the missing. Protocol: SMB Port: 445 Transfer Protocol: ? |
Protocol: SMB Port: 445 Transfer Protocol: UDP |
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06.39.1 * Provide the missing. Protocol: ? Port: 3389 Transfer Protocol: : TCP |
Protocol: RDP Port: 3389 Transfer Protocol: : TCP |
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06.39.2 * Provide the missing. Protocol: RDP Port: ? Transfer Protocol: : TCP |
Protocol: RDP Port: 3389 Transfer Protocol: : TCP |
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06.39.3 * Provide the missing. Protocol: RDP Port: 3389 Transfer Protocol: ? |
Protocol: RDP Port: 3389 Transfer Protocol: : TCP |
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06.40.1 * Provide the missing. Protocol: ? Port: 80 Transfer Protocol: TCP |
Protocol: HTTP Port: 80 Transfer Protocol: TCP |
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06.40.2 * Provide the missing. Protocol: HTTP Port: ? Transfer Protocol: TCP |
Protocol: HTTP Port: 80 Transfer Protocol: TCP |
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06.40.3 * Provide the missing. Protocol: HTTP Port: 80 Transfer Protocol: ? |
Protocol: HTTP Port: 80 Transfer Protocol: TCP |
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06.41.1 * Provide the missing. Protocol: ? Port: 443 Transfer Protocol: TCP |
Protocol: HTTPS Port: 443 Transfer Protocol: TCP |
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06.41.2 * Provide the missing. Protocol: HTTPS Port: ? Transfer Protocol: TCP |
Protocol: HTTPS Port: 443 Transfer Protocol: TCP |
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06.41.3 * Provide the missing. Protocol: HTTPS Port: 443 Transfer Protocol: ? |
Protocol: HTTPS Port: 443 Transfer Protocol: TCP |
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06.42.1 * Provide the missing. Protocol: ? Port: 137 (name services), 138 (datagram services), 139 (session services) Transfer Protocol: TCP (139) and UDP (137 and 138) |
Protocol: NetBIOS Port: 137 (name services), 138 (datagram services), 139 (session services) Transfer Protocol: TCP (139) and UDP (137 and 138) |
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06.42.2 * Provide the missing. Protocol: NetBIOS Port: ? Transfer Protocol: TCP (139) and UDP (137 and 138) |
Protocol: NetBIOS Port: 137 (name services), 138 (datagram services), 139 (session services) Transfer Protocol: TCP (139) and UDP (137 and 138) |
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06.42.3 * Provide the missing. Protocol: NetBIOS Port: 137 (name services), 138 (datagram services), 139 (session services) Transfer Protocol: ? |
Protocol: NetBIOS Port: 137 (name services), 138 (datagram services), 139 (session services) Transfer Protocol: TCP (139) and UDP (137 and 138) |
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06.43.1 * Provide the missing. Protocol: ? Port: 110 Transfer Protocol: TCP |
Protocol: POP3 Port: 110 Transfer Protocol: TCP |
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06.43.2 * Provide the missing. Protocol: POP3 Port: ? Transfer Protocol: TCP |
Protocol: POP3 Port: 110 Transfer Protocol: TCP |
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06.43.3 * Provide the missing. Protocol: POP3 Port: 110 Transfer Protocol: ? |
Protocol: POP3 Port: 110 Transfer Protocol: TCP |
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06.44.1 * Provide the missing. Protocol: ? Port: 143 Transfer Protocol: TCP |
Protocol: IMAP Port: 143 Transfer Protocol: TCP |
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06.44.2 * Provide the missing. Protocol: IMAP Port: ? Transfer Protocol: TCP |
Protocol: IMAP Port: 143 Transfer Protocol: TCP |
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06.44.3 * Provide the missing. Protocol: IMAP Port: 143 Transfer Protocol: ? |
Protocol: IMAP Port: 143 Transfer Protocol: TCP |
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06.45.1 * Provide the missing. Protocol: ? Port: 25 Transfer Protocol: TCP |
Protocol: SMTP Port: 25 Transfer Protocol: TCP |
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06.45.2 * Provide the missing. Protocol: SMTP Port: ? Transfer Protocol: TCP |
Protocol: SMTP Port: 25 Transfer Protocol: TCP |
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06.45.3 * Provide the missing. Protocol: SMTP Port: 25 Transfer Protocol: ? |
Protocol: SMTP Port: 25 Transfer Protocol: TCP |
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06.46.1 * Provide the missing. Protocol: ? Port: 5060/5061 Transfer Protocol: : UDP |
Protocol: SIP Port: 5060/5061 Transfer Protocol: : UDP |
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06.46.2 * Provide the missing. Protocol: SIP Port: ? Transfer Protocol: : UDP |
Protocol: SIP Port: 5060/5061 Transfer Protocol: : UDP |
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06.46.3 * Provide the missing. Protocol: SIP Port: 5060/5061 Transfer Protocol: : ? |
Protocol: SIP Port: 5060/5061 Transfer Protocol: : UDP |
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06.47.1 * Provide the missing. Protocol: ? Port: 2427/2727 Transfer Protocol: Both UDP and TPC |
Protocol: MGCP (Media Gateway Control Protocol) Port: 2427/2727 Transfer Protocol: Both UDP and TPC |
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06.47.2 * Provide the missing. Protocol: MGCP (Media Gateway Control Protocol) Port: ? Transfer Protocol: Both UDP and TPC |
Protocol: MGCP (Media Gateway Control Protocol) Port: 2427/2727 Transfer Protocol: Both UDP and TPC |
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06.47.3 * Provide the missing. Protocol: MGCP (Media Gateway Control Protocol) Port: 2427/2727 Transfer Protocol: ? |
Protocol: MGCP (Media Gateway Control Protocol) Port: 2427/2727 Transfer Protocol: Both UDP and TPC |
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06.48.1 * Provide the missing. Protocol: ? Port: 5004/5005 Transfer Protocol: UDP |
Protocol: RTP Port: 5004/5005 Transfer Protocol: UDP |
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06.48.2 * Provide the missing. Protocol: RTP Port: ? Transfer Protocol: UDP |
Protocol: RTP Port: 5004/5005 Transfer Protocol: UDP |
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06.48.3 * Provide the missing. Protocol: RTP Port: 5004/5005 Transfer Protocol: ? |
Protocol: RTP Port: 5004/5005 Transfer Protocol: UDP |
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06.49.1 * Provide the missing. Protocol: ? Port: 1720 Transfer Protocol: TCP |
Protocol: H.323 Port: 1720 Transfer Protocol: TCP |
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06.49.2 * Provide the missing. Protocol: H.323 Port: ? Transfer Protocol: TCP |
Protocol: H.323 Port: 1720 Transfer Protocol: TCP |
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06.49.3 * Provide the missing. Protocol: H.323 Port: 1720 Transfer Protocol: ? |
Protocol: H.323 Port: 1720 Transfer Protocol: TCP |
