mod 12
Which two devices would be described as intermediary devices? (Choose two.)
a. wireless LAN controller
b. IPS
c. server
d. gaming console
what is
a. wireless LAN controller
b. IPS
1.2 Network Components
A network technician types the command ping 127.0.0.1 at the command prompt on a computer. What is the technician trying to accomplish?
a. checking the IP address on the network card
b. testing the integrity of the TCP/IP stack on the local machine
c. pinging a host computer that has the IP address 127.0.0.1 on the network
what is
b. testing the integrity of the TCP/IP stack on the local machine
127.0.0.1 is an address reserved by TCP/IP to test the NIC, drivers and TCP/IP implementation of the device.
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13.2 Ping and Traceroute Tests
To which TCP port group does the port 414 belong?
a. registered
b. well-known
c. private or dynamic
what is
b. well-known
There are different types of TCP and UDP port numbers:
Well-known ports - numbers 0 to 1023
Registered ports - numbers 1024 to 49151
Dynamic or private ports - numbers 49152 to 65535
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14.2 TCP Overview
What service is provided by POP3?
a. Retrieves email from the server by downloading the email to the local mail application of the client.
b. Allows remote access to network devices and servers.
c. Uses encryption to provide secure remote access to network devices and servers.
what is
a. Retrieves email from the server by downloading the email to the local mail application of the client.
15.5 File Sharing Services
Which statement describes the characteristics of packet-filtering and stateful firewalls as they relate to the OSI model?
a. Both stateful and packet-filtering firewalls can filter at the application layer.
b. A stateful firewall can filter application layer information, whereas a packet-filtering firewall cannot filter beyond the network layer.
c. A packet-filtering firewall typically can filter up to the transport layer, whereas a stateful firewall can filter up to the session layer.
what is
c. A packet-filtering firewall typically can filter up to the transport layer, whereas a stateful firewall can filter up to the session layer.
Packet filtering firewalls can always filter Layer 3 content and sometimes TCP and UDP-based content. Stateful firewalls monitor connections and thus have to be able to support up to the session layer of the OSI model.
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16.3 Network Attack Mitigations
Which is the compressed format of the IPv6 address fe80:0000:0000:0000:0220:0b3f:f0e0:0029?
a. fe80::220:b3f:f0e0:29
b. fe80:9ea:0:2200::fe0:290
c. fe80:9ea0::2020:0:bf:e0:9290
what is
a. fe80::220:b3f:f0e0:29
12.2 IPv6 Address Representation
Which two ICMP messages are used by both IPv4 and IPv6 protocols? (Choose two.)
a. router solicitation
b. route redirection
c. neighbor solicitation
d. protocol unreachable
what is
b. route redirection
d. protocol unreachable
The ICMP messages common to both ICMPv4 and ICMPv6 include: host confirmation, destination (net, host, protocol, port) or service unreachable, time exceeded, and route redirection. Router solicitation, neighbor solicitation, and router advertisement are new protocols implemented in ICMPv6.
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13.1 ICMP Messages
A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting?
a. SSH
b. DHCP
c. DNS
what is
a. SSH
14.4 Port Numbers
Which command is used to manually query a DNS server to resolve a specific host name?
a. nslookup
b. ipconfig /displaydns
c. tracert
what is
a. nslookup
The nslookup command was created to allow a user to manually query a DNS server to resolve a given host name. The ipconfig /displaydns command only displays previously resolved DNS entries. The tracert command was created to examine the path that packets take as they cross a network and can resolve a hostname by automatically querying a DNS server. The net command is used to manage network computers, servers, printers, and network drives.
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15.4 IP Addressing Services
What are two ways to protect a computer from malware? (Choose two.)
a. Use antivirus software.
b. Empty the browser cache.
c. Keep software up to date.
what is
a. Use antivirus software.
c. Keep software up to date.
At a minimum, a computer should use antivirus software and have all software up to date to defend against malware.
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ITN
16.3 Network Attack Mitigations