Exam 3
ipconfig /flushdns
A Windows computer on your network is having issues resolving queries for a specific domain, but not other domains. Other computers on the same network resolve the name just fine. What command can you issue that might fix the problem?
False
All that is needed to provide communication between two VLANs is a DHCP relay agent.
trunk port
An interface that manages traffic from multiple VLANs is known by what term?
False
An unmanaged switch can still support the creation of VLANs, provided there is an interface for configuration.
port numbers
At the Transport layer of the OSI, what is used to find and communicate with a particular application running on a host?
True
At the root level of the DNS hierarchical structure, 13 clusters of root servers hold information used to locate TLD servers.
24
By default, when using classful addressing, how many bits exist in the host portion of a Class A address?
If a host's IPv6 address contains the network adapter's MAC address within the last 64 bits of the IPv6 address, what standard is being used?
If a host's IPv6 address contains the network adapter's MAC address within the last 64 bits of the IPv6 address, what standard is being used?
The last four blocks of the address.
If the EUI-64 standard is used, what part of an IPv6 address is affected?
flow label
In IPv6, what field is used to indicate what sequence of packets from one source to one or multiple destinations a packet belongs to?
True
In general, a Layer 3 or Layer 4 switch is still optimized for fast Layer 2 data handling.
On the DNS root servers
In the DNS hierarchy, where is information about how to find the top-level domain servers held?
128.0.x.y to 191.255.x.y
In the classful addressing scheme, what range of network addresses is considered a Class B?
In the event of a duplicate MAC address shared by two hosts on a switched network, what statement is accurate?
In the event of a duplicate MAC address shared by two hosts on a switched network, what statement is accurate?
SIP
It is the time it takes for the protocol to recognize the best path in the event of a network change.
True
Network segmentation at Layer 2 of the OSI model is accomplished using VLANs.
100013
On a Cisco switch, what would the security association identifier be for VLAN 13?
ifconfig -a
On a Linux-based system, what command can be used to display TCP/IP information associated with every interface on the system?
TCP 3389
On the switch that is known as the stack master.
link-state protocols
Routing protocols that enable routers to communicate beyond neighboring routers, allowing each router to independently map the network, are known as which type of protocols?
255.255.255.192
TCP uses a four-step process called a four-way handshake to establish a TCP connection.
False
TCP uses a four-step process called a four-way handshake to establish a TCP connection.
False
The 1024 - 65535 range of ports is also known as the "well-known" range.
True
The Border Gateway Protocol is considered to be a hybrid routing protocol.
TCP
The IP connectionless protocol relies on what other protocol to guarantee delivery of data?
False
UDP provides error checking, but not sequencing
ipconfig /all
What command can you utilize to display TCP/IP configuration information for each network adapter installed?
set native-vlan-id
What command will set the native VLAN on a Juniper switch port?
Framing
What is NOT one of the three characteristics of TCP in its role as a reliable delivery protocol?
It is the time it takes for the protocol to recognize the best path in the event of a network change.
What is routing protocol convergence time defined as?
By default, the tracert utility uses ICMP echo requests, while traceroute uses UDP datagrams or TCP SYN messages.
What statement regarding the differences between the Windows tracert utility and the Linux/UNIX/macOS traceroute utility is accurate?
What subnet mask can be used to segment the 172.16.0.0 network to allow for a minimum of 6 subnets while maximizing the number of hosts per subnet?
What subnet mask can be used to segment the 172.16.0.0 network to allow for a minimum of 6 subnets while maximizing the number of hosts per subnet?
tcpdump port 22
What tcpdump command can be used to filter out all traffic except SSH traffic?
link local address
What type of IPv6 address is fe80::8cf1:2c42:ffde:da1c?
mtr
What utility is the equivalent to the pathping command on a Linux system?
router-on-a-stick
What utility is the equivalent to the pathping command on a Linux system?
VLAN 1001
When dealing with a Cisco switch, what is NOT one of the pre-established VLANs?
True
When using IPv6, two or more nodes on the same link are said to be neighbors
15
When using the Routing Information Protocol (RIP), what is the maximum number of hops a message can take between its source and its destination before the destination is considered unreachable?
netstat -s
Which command will produce statistics about each message transmitted by a host, separated according to protocol type?
2000::/3
Which of the following IPv6 addresses represents a global unicast address?
127.0.0.0 through 127.255.255.255
Which of the following is NOT a range of IP addresses recommended for use in private networks?
A router forwards broadcasts over the network
Which of the following is not a task handled by a router?
traceroute -I srv1.mycompany.com
Which traceroute command will perform a trace using ICMP echo requests instead of UDP datagrams to the host srv1.mycompany.com?
On the switch that is known as the stack master.
With VTP, where is the VLAN database stored?
mycompany.com
With a FQDN of ftp1.dallas.mycompany.com, what part is the domain name?
show ip route
You are connected to your network's Cisco router, and need to verify the route table. What command should you enter?
TXT record
You are setting up a DNS zone and have been asked to create SPF and DKIM records. What type of DNS record will hold this information?
dig @8.8.8.8 mycompany.com MX
You are troubleshooting a DNS issue on a Linux system, and need to test the resolution of your domain mycompany.com MX record using Google's DNS server with the IP address of 8.8.8.8. What dig command will accomplish this?
Both IPv4 and IPv6 protocols will be used on the network.
Your supervisor has asked you to configure a new prototype network with a dual stack configuration. What does this mean?
