EX358 Red Hat Certified Specialist in Services Management and Automation Practice Questions
Prepare for EX358 with more than an answer.
- Exam fee
- $500 USD
- Time limit
- 240 minutes
- Questions on the exam
- Not disclosed (performance-based tasks on live RHEL systems)
- Passing score
- 210 out of 300 (70%) (scale 0-300)
- Level
- Specialist
- Valid for
- 3 years
Domains covered on the exam 15
- Manage Network Services5%
- Manage Firewall Services5%
- Manage SELinux5%
- Manage System Processes4%
- Manage Link Aggregation7%
- Manage DNS9%
- Manage DHCP7%
- Manage Printers4%
- Manage Email Services5%
- Manage a MariaDB Database Server11%
- Manage HTTPD Web Access13%
- Manage iSCSI7%
- Manage NFS6%
- Manage SMB7%
- Use Ansible to Configure Standard Services5%
- 1
You need to configure a network bond
bond0using two interfaces,eth1andeth2. The requirement is to provide fault tolerance only (no load balancing), but the switch does not support LACP or any special link aggregation configuration. Which bonding mode must you select?Show answer details
Correct answer: A
Active-Backup (mode 1) provides redundancy by keeping one interface active and the others in standby. It does not require special switch support.
- 2
You are configuring an 802.3ad (LACP) bond. While verifying the status via
/proc/net/bonding/bond0, you notice the 'Aggregator ID' is different for the two slave interfaces. What does this indicate?Show answer details
Correct answer: A
In a functional LACP bond, all slaves in the same bond should negotiate the same Aggregator ID with the switch. If they differ, the switch ports are likely not in the same LACP group.
graph TD Server[Server Bond0] -->|Slave 1| SwitchPort1[Switch Port 1] Server -->|Slave 2| SwitchPort2[Switch Port 2] SwitchPort1 |LACP DU| LACP_Logic SwitchPort2 |LACP DU| LACP_Logic subgraph Switch LACP_Logic{Same Aggregator?} end - 3
Which nmcli command correctly adds a slave interface 'eth1' to an existing bond connection named 'bond0-profile'?
Show answer details
Correct answer: A
To add a slave, you create a new connection of type
bond-slave, specifying the physical interface (ifname) and the master bond interface name (master). - 4
You are configuring an Unbound DNS server to act as a caching nameserver for the local network 192.168.10.0/24. By default, Unbound refuses queries from all clients. Which directive in
unbound.confenables recursive queries for this subnet?Show answer details
Correct answer: A
The
access-controldirective defines which IP ranges are allowed to query the server. 'allow' permits recursive queries. - 5
You are configuring a new static network profile for a server named 'prod-db-01' using NetworkManager. The server requires a manual IPv6 address of 2001:db8:1::10/64 and must not attempt to use SLAAC (Stateless Address Autoconfiguration) or DHCPv6. Which nmcli command sequence correctly configures these requirements?
Show answer details
Correct answer: A
To configure a static IPv6 address and disable autoconfiguration (SLAAC/DHCPv6), you must set the 'ipv6.method' to 'manual'. Setting only the address without changing the method from 'auto' (default) might result in the interface still attempting to acquire dynamic addresses.
- 6
You have modified the configuration file
/etc/NetworkManager/system-connections/ens192.nmconnectiondirectly using a text editor to change the IP address. However,ip addr showstill displays the old IP address. What is the most efficient command to apply these changes without disrupting other network connections?Show answer details
Correct answer: B
When editing connection files directly, NetworkManager is not automatically aware of the changes. You must run
nmcli connection reloadto read the file changes, followed bynmcli connection upto apply the new configuration to the interface.
