Network Fundementals Flashcards
When a frame that enters a switch fails the frame check sequence, which two interface counters are incremented?
Input Errors & CRC
Which 802.11 frame type is Association Response?
Management
In which way does spine-and-leaf architecture allow for scalability in a network when additional access ports are required?
A leaf switch can be added with connections to every spine switch.
What identifies the functionality of virtual machines?
The hypervisor virtualizes physical components including CPU, memory & storage.
Which command automatically generates an IPv6 address from a specified IPv6 prefix and MAC address of an interface?
IPv6 address autoconfig
When configuring IPv6 on an interface, which two IPv6 multicast groups are joined?
FF02::1 & FF02::2
Which network allows devices to communicate without the need to access the internet?
172.28.0.0 (CLASS B)
Which IPv6 address type provides communication between subnets and cannot route on the internet?
Unique local
Which IPv6 address block sends packets to a group address rather than a single address?
FF00::/8 is used for multicast
What action is taken by switch port enabled for PoE power classification override?
If a monitored port exceeds the maximum administrative value for power, the port is shutdown and err-disabled.
What occurs to frames during the process of frame flooding?
Frames are sent to every port on the switch in the same VLAN expect from the originating port.
Which function does the range of private IPv4 address perform?
Allows multiple companies to each use the same address without conflicts.
What are two descriptions of three-tier network topologies?
The distribution layer runs Layer 2 and Layer 3 technologies;
The network core is designed to maintain continuous connectivity when device fails.
Which type of IPv6 address is publicly routable in the same way as IPv4 public addresses?
Global Unicast
What is a characteristic of spine-and-leaf architecture?
Each device is separated by the same number of hops.
A device detects two stations transmitting frames at the same time. This condition occurs after the first 64 bytes of the frame is received. Which interface counter increments?
late collision
A wireless administrator has configured a WLAN; however, the clients need access to a less congested 5-GHz network for their voice quality. Which action must be taken to meet the requirement?
enable Band Select
For what two purposes does the Ethernet protocol use physical addresses?
to uniquely identify devices at Layer 2;
to allow detection of a remote device when its physical address is unknown
What are two benefits of private IPv4 IP addresses?
They are less costly than public IP addresses.
They can be assigned to devices without Internet connections.
Which two goals reasons to implement private IPv4 addressing on your network?
Conserve IPv4 address.
Reduce the risk of a network security breach.
Which WAN access technology is preferred for a small office / home office architecture?
broadband cable access
Which two options are the best reasons to use an IPV4 private IP space?
to enable intra-enterprise communication.
to conserve global address space.
Which function is performed by the collapsed core layer in a two-tier architecture?
enforcing routing policies.
What is the primary function of a Layer 3 device?
to pass traffic between different networks.
